... , non-toxic, no heavy metal additives, directly apply to the water supply system.2. Corrosion resistant, not scaling, no rust, anti ... and temperature.Application:1. Residential cool/hot water piping system.2. Transport and discharge for industrial water and chemicals.3. Piping system for ... ProcessPackaging Sample (38x30x27mm, or 38x25x20mm) PN25 ppr pipe fitting for hot and cold water