ygs67 发表于 2015-12-12 15:23:17

ASTM A213_A213M-15c

ASTM A213_A213M-15c Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes

admin 发表于 2015-12-14 09:53:58

谢谢您的分享，金币已奖励!
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