1. Applicable Plumbing Material Various types of plumbing including steel pipe, copper pipe, stainless pipe, plastic pipe, etc. 2. Factory MFG plumbing line, residential plumbing line 3. Cooling towers at hospitals, hotels, department stores, factories, etc. 4. Various vessel's plumbing line 5. Gas boiler, various boiler tanks 6. Building, water circulation System 7. New & existing apartments, swimming pools, saunas 8. Building plumbing requiring corrosion, scale elimination and prevention 9. Vending machines, soft drink supply plumbing line 10. Late night electric water heating...