... Ring: Stainless SteelPlastic: POM (Dupont material) Introduction of push fit fittings/valves : 1, Made of brass CW602N; CW617N ... , Large flow 3,Scope of Application Pipe fittings,Push connect plumbing fittings. Connect with CPVC,PEX,COPPER... ... strict management system, Factory passed ISO9001quality management system certification. Linbo enjoy customers'good reputation at home and abroad. Push connect ...