1.For multilayer pipe, 2.Material is CW617N&CW602N, 3.SUS304 S/S sleeve 4. ... ,stainless steel SUS 304 sleeve and plastic ring.Brass body material can be CW617N, CW602N, Hpb59-1, Hpb58-2, ... The side with SUS304 sleeve can connect the same size pipe by pressing of jaw,after installation, it can be ... in the end of the stainless steel sleeve, indeed the tube has been inserted until the end of the fitting; ...