1.For multilayer pipe, 2.Material is CW617N&CW602N, 3.SUS304 S/S sleeve 4.Size 16,18,20,25,32,1/2",3/4",1" 5.tin plating Our male coupling brass press fitting is made of brass body,EDPM seal rings,stainless steel SUS 304 sleeve and plastic ring.Brass body material can be CW617N, CW602N, Hpb59-1, Hpb58-2, Hpb58-3, etc;brass body superficial treatment can be tin-plating and nickel-plating.The side ...