1).Press Fitting for Pex-Al-Pex Pipe 2).Forged Brass Material 3).Certificate:ISO9001 4).Size:16mm,20mm, ... of fittings,cut-ring and nut,3)Raw material:brass for different type:DZR,CW617,CZ132,Normal ... :Connecting pipes,suitable for cold water,hot water and gas applications...brass press fitting coupling (union) ... CW617N, CW602N, Hpb59-1, Hpb58-2, Hpb58-3, etc;brass body superficial treatment can be tin ...