论坛首页 › 其他标准 › API STD 608-2008 Metal Ball Valves—Flanged, Threaded and Welding Ends

yancangling 发表于 2016-7-25 09:35:40

API STD 608-2008 Metal Ball Valves—Flanged, Threaded and Welding Ends

API STD 608-2008 Metal Ball Valves—Flanged,  Threaded and Welding Ends

admin 发表于 2016-7-25 11:10:31

谢谢您的分享，金币已奖励

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