SHANDONG DAZHONG MECHANICAL MANUFACTURING CO., LTD.
 · Address:Shandong Laicheng industrial Zone
· Department of Management:+86-634-6650759 Luoqiang:+86-13563425088 e-mail：glb@sd-lz.com
· Department of Commerce:+86-634-6650757 Wangxinsheng:+86-13906341826 e-mail：swb@sd-lz.com
· Ministry of Foreign Trade:+86-634-6650508 Jiajunming:8953417788 e-mail：trade@sd-lz.com
· Website：rongyanji.com
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