Qinhuangdao North Metal Hose Co., Ltd. is located in the beautiful seashore city --Qinhuangdao. It is a high and new-technology enterprise, mainly engaged in the research, development and manufacture of the metallic bellows expansion joint, non-metallic expansion joint, telescopic expansion joint, spherical expansion joint, Teflon expansion joint, tuyere stock assembly, metal hose, rubber hose and pipe supports of low friction coefficient etc.. It is the main research and manufacture base of ...