阀门零部件 阀杆材料
| 零件名称 | 材料 | 标准号 |
| A型阀杆螺母 | ZCuZn38Mn2Pb2 | GB/T 1176 |
| B型阀杆螺母 | ZCuA110Fe3 | GB/T 1176 |
| ZCuZn38Mn2Pb2 | GB/T 1176 | |
| C、D型阀杆螺母 | ZCuZn38Mn2Pb2、QA19-4 | GB/T 1176 |
| E型阀杆螺母 | ZCuZn38Mn2Pb2 | GB/T 1176 |
| QT500-5 | GB/T 12227 | |
| F、G型阀杆螺母 | ZCuA110Fe3、ZCuZn38Mn2Pb2 | GB/T 1176 |
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