liuxilin1215 发表于 2014-12-17 21:54:44

AS 2129-2000 管道法兰、阀门及配件

AS 2129-2000 Flanges for pipes, valves and fittings
管道法兰、阀门及配件


admin 发表于 2014-12-18 10:18:13

谢谢您的分享，金币已奖励
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