Qinhuangdao Haizhi Science & Technology Co.,LTD is a manufacture of over 30 kinds of products including automatic expansion joint forming machine,metal bellow forming machine,plate bending machine,spring bellows ,expansion joint and so on. Company is located in the state level Technical and Economic Development Zone --- Qinhuangdao E.T.D.Z that enjoys good location and convenient transportation. Productions: Metal Bellow Machines Expansion Joint Forming Machine Bellow Roller Forming Machine Hydraulic Bellow Forming Machine Precision Bellow Machine Other Machines Shear Machine Welding Positioner Machine Plate bending Machine Seam Welder Steel Strip Uncoiler Metal Bellows Annula Flexible Hose Rectangular Bellow Metal Bellow Expansion Joint Spring Bellow