... 22, 28.58, 34.00, 42.7, 48.6, 76.1, 88.9, 108mm.Which sizes is ... countries, Asia countries and some other countries. Standard:Press fitting standard: GB/T 19228.1-2003, DVGW W534 ... DIN EN 10312:1999 and JIS G3448-1997Sealing ring standard: GBT 19228.3-2003, EN681-1:1998 ... Working Pressure(1.6MPa / 232PSI): (5). Shock Resistant: (6). Low Flow Resistance: (7). Environment-friendly Material(No Pollution): ...