... make threads on reinforced bars join with rebar coupler high precision cost effective Features: 1: Simple operation, ... technicians, fast splicing on construction site; 2: High production efficiency, 300 to 500pcs of thread could ... technicians, fast splicing on construction site;2: High production efficiency, 300 to 500pcs of thread could ... for the equipment. Rebar Threaded Rolling Machine(high quality)