... Mutually beneficial 4,Joint development Carbon Steel Press Fittings M-Profile/contourStainless steel AISI304/304L/AISI316/ ... 316Lpress fitting,galvanized carbon steel press fittings,copper and bronze press fitting, pressfittings, pressfittinge ... thickness: 1.0--2.0mm Size range: GB1 series sizes: 15,18,22,28,35,42,54 ... .9,108mm. (Same as DVGW W534:1995);GB2 series’ sizes: 15.88, 22.22, 28.58, ...