Our company was established in 1987. Changzhou Jianlian Reinforcing Bar Conjuction C... is a professional in manufacting reinforcing bar connecting couplers and machines including three series of upset forging straight screw thread system, rib peeling roll stamping system, and cold stamping system. withã??excellent production environment, good technical power and completedã??devices, the company has an annual production capacity of 6 million Φ12-Φ40 reinforcing steel bar upset forging straight screw thread connectionã??adapter sleeves, and 500sets of machinary, which could well meet major and key construction project need.</p>