jinlong5 发表于 2020-8-11 16:06:07

ASME BPVC-IIA-SA-209-209M-2017 SPECIFICATION FOR SEAMLESS CARBON-MOLYBDENUM ALLO

ASME BPVC-IIA-SA-209-209M-2017
SPECIFICATION FOR SEAMLESS
CARBON-MOLYBDENUM ALLOY-STEEL BOILER AND
SUPERHEATER TUBES

admin 发表于 2020-8-11 20:47:28

谢谢您的分享,金币已奖励!
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