... aluminum rod welding /soldering copper wire SZ-158 Hydraulic Cold welding machine / oxygen-free copper rod welding equipment welding setIntroduction ... , gold, silver, nickel, and other non-ferrous metal wire/rod.Main parameters1.Motor Power:4KW2.Working pressure:<=4 ... .All-in-one service, including parts/accessories/metal design, producing, machine processing and post processing.2.Operating manual with ...