... the competitive price 2.from 1/2'' to 72'' 4.ISO 9001:2000,SGS,BV Bend 1. Material: stainless steel,alloy steel,carbon ... , BS,GB, SH, HG,QOST,ETC.CE and certification:ISO9001:2000 , API , BV , SGS, LOIYDApplications range: Petroleum, chemical, power, gas, metallurgy ... , BS,GB, SH, HG,QOST,ETC.CE and certification:ISO9001:2000 , API , BV , SGS, LOIYDApplications range: Petroleum, chemical, power, gas, ...