This machine can make gold ,K gold ,silver ,and copper cable chain and curb chain in bigger sizes ,like 0.8mm 1.0mm 1.2mm 1.4mm Universal Chain Making Machine(GTDZL) is the universal chain welding machine developed by our company. It can make noble mental lines with the diameter of Ø0.30mmØ2.5mm, and the maxmum diameter of the chain can be 12mm mental circles just by one time. The maxmum speed ...