... ,25,32,40,50,63mm or 1/2"-3" Supply to PPR fittings factories Brass Insert For PPR Fittings1) With 59 brass or ... CW6172)Size range:20,25,32,40,50,63mm or 1/2"-3 ... many PPR factories5) Brass Insert, Round Brass Knurled Insert, Brass Hexagonal Insert, Brass Square Inserts, Brass plastic Insert, Threaded Brass Insert Screw can be developed ...