pressure-retaining member
... 压拉尺 push-pull rule 压力保持部件 pressure-retaining member 压力泵 force pump ...
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直接焊接到压力保持部件上的外部配件及容器支架的材料应与压力部件相同。
Materials for external attachments and vessel support welded directly to the pressure retaining parts shall be similar material as the pressure parts.
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