... 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"3) with nickel coating ... factories5) Brass Insert, Round Brass Knurled Insert, Brass Hexagonal Insert, Brass Square Inserts, Brass plastic Insert, Threaded Brass Insert Screw can ...