steel elbow 1.high quality and the competitive price 2.from 1/2' to 72' 3.ISO 9001:2000,SGS,BV,etc Elbow 1. Material: stainless steel,alloy steel,carbon steel 2. Size range: FROM 1/2" TO 72" 3.Pressure: Sch5--Sch160,XXS 4. STANDARDS ANSI, ISO, JIS, DIN, BS, GB, SH, HG, QOST, ETC. 5. CE and certification: ISO9001:2000, API, BV, SGS, LOIYD 6. Applications range: "Petroleum, chemical, power, gas, ...