Changzhou Bartech Construction Material Co., Ltd. is one of the leader suppliers for rebar couplers and related rebar threading machines in China. We offers series of innovative products specialized in rebar mechanical connections with Parallel Thread Rolling technology; Parallel thread Upsetting Technology,Website:http://www.chinabartech.net, Cold Pressing Technology. With 10 years of experience in export, now we have market in Kuwait, UAE, Vietnam, Korea and other Middle East and Asia countries. We can provide different raw material for the couplers to meet different rebar grade.