澳门新葡亰娱乐客户端

THE PRODUCTION & QUALITY CONTROL FLOW CHART FOR FORGED PIPE FITTINGS: 

 

THE PRODUCTION & QUALITY CONTROL FLOW CHART FOR BUTT WELD PIPE FITTINGS:

 

 THE PRODUCTION & QUALITY CONTROL FLOW CHART FOR  FOR PIPE FLANGES:
 

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Jessica
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