Laizhou dongsheng valve co.,ltd.   Add:Haizheng village, Laizhou City, Shandong province,China 

TEL:0086-535-2370538 2371078 FAX:0086-535-2370581  E-mail:dongsheng@lzds.cn

鲁ICP备05011846号-1 Technical Support:www.300.cn

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