HG350K China Polisher 1. Power: 350W, AC ... 3 layers HG350K China PolisherApplication:1) Jewelry Industry: For welding kinds of chain and string made of ... , casting , welding) .2) Organic Glass Industry: Quick and fine polishing for acryl (organic glass), solving problems that ... purified water, cold boiled water, tap water, and , mineral water.Safety fittingsInnovation backfire-proof fittings, ...