Estanda: ASTM A182, ASTM SA182 Dimansyon: ASME 16.11 Gwosè: 1/4″ NB A 4″ NB Klas: 2000LBS,3000LBS,6000LBS,9000LBS Fòm: redui kwa, kwa inegal, kwa egal, kwa fòje Kalite: Socketweld Fittings & Screwed-Threaded NPT, BSP, BSPT Fittings