ppr fittings dn20: 1.white,green,grey color 2.ISO9001, German DIN8077/8078 ... fittings, PPR pipes, PPR fittings, PERT-AL-PPR Pipes, PPR-AL-PPR Pipes, PE-RT-PPR Ppies, BUTT-WELDED PPR Pipes,S-S-PPR PIPES. Features of ppr fittings dn20:1.Raw material: PPR ... hot welding connection for excellent welding quality of pipes and fittings;5.Excellent heat insulation features with minimal thermal conductivity(only ...