SCREWED FITTINGSAND PRESSURE FORGED FITTINGS PERFECT PRODUCTS ARE OUR ULTIMATE GOALStantard: ANSI B 16.3 ANSI B16.11,MSS SP-79,MSS SP-83,MSS SP-95,MSS SP-97 ,BS 3799Material: stainless steel, carbon steel.Pressure: 2000LBS,3000LBS,6000LBS