jinlong5 发表于 2020-8-7 18:09:45

ASME BPVC-IIA-SA-53-53M-2017 SPECIFICATION FOR PIPE, STEEL, BLACK AND HOT-DIPPED

ASME BPVC-IIA-SA-53-53M-2017
SPECIFICATION FOR PIPE, STEEL, BLACK AND
HOT-DIPPED, ZINC-COATED, WELDED AND SEAMLESS

admin 发表于 2020-8-9 10:18:37

谢谢您的分享,金币已奖励!
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