JBCZ company was established in 1987,we are a professional developer and manufacturer of rebar mechanical splice products ,a leader of this industry in China ,contains rebar processing machines and couplers We have five systems of machine:1. Upset forging parallel thread machine and coupler;2. Rib peeling roll stamping machine and coupler;3. Cold extrusion press machine and coupler;4. Taper thread machine and coupler5.Adding length threading machineOur products and technology have past ISO9001:2008 quality management system and CE certificate.Our products have exported to 23 different countries such as U.A.E, India,Ukraine, Poland,Sudan......