1.For multilayer PEX pipe, 2.Natural stainless and brass 3.Material SUS ... 18,25,32 Our brass press fitting, brass pipe fitting,pex pipe fitting,pvc pipe fitting,ppr fitting ,copper fitting, ... steel ring(AISI 304) it will be, irreversibly joined the tube with the fitting.Our fittings are manufactured with brass of ... a perfect watertightness in the hydraulic or heating installations. PEX PIPE FUTTING