... Polishing Machine 1.Power: 400w, AC220V 50HZ 2.Gas flow:60-80l/h 3.Electrolyzing case: Single case, 3layers : HG350D China Polishing ... MachineApplication:1) Jewelry Industry:For welding kinds of chain and string made of platiomnum , gold , silver , copper , stainless ... , welding) .2) Organic Glass Industry:Quick and fine polishing for acryl (organic glass), solving problems that grinding wheel ...