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4J36 （Invar36）低膨脹合金

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用于制作在氣溫變化范圍內尺寸近于恒定的元件，廣泛用于無線電，精密儀表,儀器和其他行業(yè)，做標準量具，微波諧振腔，雙金屬波動層等。 儀器和其他行業(yè)，做標準量具，微波諧振腔，雙金屬波動層等。
鐵鎳定膨脹玻封合金4J54

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鐵鎳定膨脹合金是通過調整鎳含量而獲得在給定溫度范圍內能與膨脹系數(shù)不同的軟玻璃和陶瓷匹配的一系列定膨脹合金，其膨脹系數(shù)和居里點隨鎳含量增加而增加。該合金是電真空工業(yè)中廣泛使用的封接結構材料。
鐵鎳定膨脹玻封合金4J52

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<span style="font-family: 宋體, -apple-system, "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: 12px; font-weight: 700; text-align: justify; background-color: rgb(255, 255, 255);">鐵鎳定膨脹合金是通過調整鎳含量而獲得在給定溫度范圍內能與膨脹系數(shù)不同的軟玻璃和陶瓷匹配的一系列定膨脹合金，其膨脹系數(shù)和居里點隨鎳含量增加而增加。該組合金是電真空工業(yè)中廣泛使用的封接結構材料。
鐵鎳定膨脹玻封合金4J50

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<span style="font-family: 宋體, -apple-system, "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: 12px; font-weight: 700; text-align: justify; background-color: rgb(255, 255, 255);">鐵鎳定膨脹合金是通過調整鎳含量而獲得在給定溫度范圍內能與膨脹系數(shù)不同的軟玻璃和陶瓷匹配的一系列定膨脹合金，其膨脹系數(shù)和居里點隨鎳含量增加而增加。該組合金是電真空工業(yè)中廣泛使用的封接結構材料。
鐵鎳定膨脹玻封合金4J45

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<span style="font-family: 宋體, -apple-system, "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: 12px; font-weight: 700; text-align: justify; background-color: rgb(255, 255, 255);">鐵鎳定膨脹合金是通過調整鎳含量而獲得在給定溫度范圍內能與膨脹系數(shù)不同的軟玻璃和陶瓷匹配的一系列定膨脹合金，其膨脹系數(shù)和居里點隨鎳含量增加而增加。該組合金是電真空工業(yè)中廣泛使用的封接結構材料。
鐵鈷礬軟磁合金1J22

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<span style="font-family: 宋體, -apple-system, "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: 12px; text-align: justify; background-color: rgb(255, 255, 255);">該合金組織結構為體心立方晶格的單相固溶體，在900～930℃附近發(fā)生γα相轉變，當溫度低于730℃時，產生有序化，形成FeCo超結構，無序的α相轉變?yōu)橛行颚痢湎唷?lt;/span>
4J36低膨脹合金

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<span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: Geneva, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:="">4J36合金又稱因瓦(INVAR)合金，合金的居里點約為230<span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:="">℃，低于這一溫度時合金是鐵磁性的，具有很低的膨脹系數(shù)，高于這一溫度時合金為無磁性的，膨脹系數(shù)增大。該合金主要用于制造在氣溫變化范圍內尺寸近似恒定的元件，廣泛用于無線電工業(yè)、精密儀器、儀表及其他工業(yè)。
4J32低膨脹合金

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<span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: Geneva, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: 14px; font-weight: 700; text-align: justify; background-color: rgb(255, 255, 255);">4J32適用于在環(huán)境溫度變化范圍內，制作對尺寸具有高精度要求的儀表零件。<span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:="">
4J29鐵鎳鈷合金

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<span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: Geneva, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="font-family: Arial, -apple-system, "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; color: rgb(84, 84, 86); background: rgb(241, 241, 241); vertical-align: baseline;">4J29合金在20～450<span style="font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; font-family: 宋體, -apple-system, "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; color: rgb(84, 84, 86); background: rgb(241, 241, 241); vertical-align: baseline;">℃具有與硅硼硬玻璃相近的線膨脹系數(shù)，居里點較高，并有良好的低溫組織穩(wěn)定性。合金的氧化膜致密，能很好地被玻璃浸潤,是電真空器件主要密封結構材料。<span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:="">
4J42鐵鎳合金

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<span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: Geneva, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-weight:="" letter-spacing:="" text-align:="" font-size:="" color:="" background:="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: 宋體, -apple-system, "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: 14px; font-weight: 700; text-align: justify; background-color: rgb(255, 255, 255);">用于制作電器元件上與軟玻璃, 陶瓷匹配封接的鐵鎳合金帶材,棒材,管材，絲材和板材。在電真空工業(yè)中和相應的軟玻璃進行匹配封接。<span style="font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" color:="" background:="" vertical-align:=""><span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:="">
4J33鐵鎳鈷合金

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<span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: Geneva, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-weight:="" letter-spacing:="" text-align:="" font-size:="" color:="" background:="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: 14px; font-weight: 700; text-align: justify; background-color: rgb(241, 241, 241);">4J33合金經航空工廠長期使用,性能穩(wěn)定。主要用于電真空元件與A203陶瓷封接。制造大型電子管和磁控管的電極、引出盤和引出線。隨著市場需求的不斷擴大，目前用途也越來越廣泛。<span style="font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" color:="" background:="" vertical-align:=""><span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:="">
4J48鐵鎳合金

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<span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: Geneva, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-weight:="" letter-spacing:="" text-align:="" font-size:="" color:="" background:="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: 14px; font-weight: 700; text-align: justify; background-color: rgb(241, 241, 241);"> 鐵鎳玻封合金4J48主要適用于電器元件與硬玻璃、軟玻璃、陶瓷匹配封接的玻封合金，其狀態(tài)有硬態(tài)和軟態(tài)兩種．帶材規(guī)格為0.0.15mm以上．<span style="font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" color:="" background:="" vertical-align:=""><span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:="">
4J47鐵鎳鉻封接合金

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<span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: Geneva, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-weight:="" letter-spacing:="" text-align:="" font-size:="" color:="" background:="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""> <span style="color: rgb(84, 84, 86); font-family: 宋體, -apple-system, "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: 14px; font-weight: 700; text-align: justify; background-color: rgb(255, 255, 255);">在給定的溫度范圍內具有一定的線膨脹系數(shù)。用途：在電真空工業(yè)中和軟玻璃或相應陶瓷進行匹配封接。<span style="font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" color:="" background:="" vertical-align:=""><span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:="">
4J44定膨脹封接鐵鎳鈷合金

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<span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: Geneva, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-weight:="" letter-spacing:="" text-align:="" font-size:="" color:="" background:="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""> <span style="color: rgb(84, 84, 86); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" color:="" background:="" vertical-align:="">用于制作與硬玻璃匹配封接的鐵鎳鈷合金帶材,棒材,板材,管材。適用于發(fā)射管、振蕩管、引燃管、晶體管以及管封插頭、繼電器外殼等電真空器件。在20℃<span style="font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-weight:="" letter-spacing:="" text-align:="" font-size:="" color:="" background:="" vertical-align:="">-450<span style="font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" color:="" background:="" vertical-align:="">℃溫度范圍內具有一定的線膨脹系數(shù)，能與硬玻璃進行匹配牢固封接。<span style="font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" color:="" background:="" vertical-align:=""><span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:="">
4J40低膨脹合金

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<span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: Geneva, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-weight:="" letter-spacing:="" text-align:="" font-size:="" color:="" background:="" vertical-align:=""><span style="color: rgb(84, 84, 86); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="color: rgb(84, 84, 86); font-family: Arial, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""> <span style="color: rgb(84, 84, 86); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" font-size:="" font-weight:="" text-align:="" background-color:=""><span style="font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" color:="" background:="" vertical-align:=""><span style="font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; font-family: 宋體, -apple-system, "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; color: rgb(84, 84, 86); background: rgb(255, 255, 255); vertical-align: baseline;">在20-100°<span style="font-family: Arial, -apple-system, "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; color: rgb(84, 84, 86); background: rgb(255, 255, 255); vertical-align: baseline;">C范圍內具有低的線膨脹系數(shù)，而且易切削加工。用途：在電真空工業(yè)中制作各種速調管，微波管的諧振腔。<span style="font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" color:="" background:="" vertical-align:=""><span style="font-weight: 700; letter-spacing: 0pt; text-align: justify; font-size: 10.5pt; font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" color:="" background:="" vertical-align:=""><span style="font-size: 9pt; letter-spacing: 0pt; text-align: justify; background: rgb(255, 255, 255); font-family: 宋體, -apple-system, " helvetica="" pingfang="" microsoft="" source="" han="" sans="" noto="" cjk="" wenquanyi="" micro="" vertical-align:="">

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