... press fittings for pert-al-pert&pex-al-pex pipes 2.CW617N,CW602N 3.EDPM seal rings 4. SUS 304 sleeve ... .Brass body material can be CW617N, CW602N, Hpb59-1, Hpb58-2, Hpb58-3, etc;brass body superficial treatment can be tin ... .The side with SUS304 sleeve can connect the same size pipe by pressing of jaw, after installation, it can be seen ...