supply best seller carbon steel elbow pipe fitting industrial supply china supplier good price 1. Material: stainless steel,alloy steel,carbon steel2. Size range: FROM 1/2" TO 72"3.Pressure: Sch5--Sch160,XXS4. STANDARDS ANSI, ISO, JIS, DIN, BS, GB, SH, HG, QOST, ETC.5. CE and certification: ISO9001:2000, API, BV, SGS, LOIYD6...