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阀门零部件 透镜垫材料_阀门标准
阀门零部件 透镜垫材料
| 材料牌号 | 标准号 |
| 20 | GB/T 699 |
| 0Cr18Ni9Ti、0Cr17Ni12Mo2、0Cr17Mn13Mo2N、00Cr17Ni14Mo2 | GB/T 1220 |
| TA3、TC4 | GB/T 3620.1 |
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