jinlong5 发表于 2020-8-10 17:33:31

ASME BPVC-IIA-SA-178-178M-2017

ASME BPVC-IIA-SA-178-178M-2017

SPECIFICATION FOR ELECTRIC-RESISTANCE-WELDED
CARBON STEEL AND CARBON-MANGANESE STEEL
BOILER AND SUPERHEATER TUBES

admin 发表于 2020-8-10 20:35:28

谢谢您的分享,金币已奖励!
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