... and hot water tubes: ISO9001 and DIN8077/8078 standard size from 20mm to 160mm best quality and lowest price Features of ppr cold and hot water ... ISO9001, ISO4001Applications: Cold or hot water supply, heating system including flooring heating, wall heating and radiating system, Central air ... 50 years under normal conditions Recycled and Environment-friendlyPP-R Water Supply Pipe PN 1.25MPaPN 1. ...