... high impact strength.4. Lower cost compared with steel fitting, brass fitting.5. Convenient installation, reliable, recycled, environmental protection and ... Caliduct, floor and wall heating equipment.8. Piping system for other industries and agriculture.Material:PPR (Hyosung,Borealis,Yanshan) ... of Test ProcessPackaging Sample (38x30x27mm, or 38x25x20mm) ppr pipe fitting for construction and estate