... : ISO9001-2008, ISO14001:2004Advantage:1. Sanitary, non-toxic, no heavy metal additives, directly apply to the water supply system ... Corrosion resistant, not scaling, no rust, anti-bacterial.3. Light weight, high strength and high impact strength.4. Lower ... piping system.2. Transport and discharge for industrial water and chemicals.3. Piping system for purified water and drinking water.4. Production ...