... passed:ISO9001 2,Producing standard:ISO7465 3,We are SJEC,HYUNDAI,FUJI,IFE Power Supplier 1,T89/B Lift Guide Rail ... GradeChemical CompositionCMnSiSPQ235B0.14-0.220.35-0.650.12-0.30≤0.05≤0.045Mechanical propertyYield Strength N/mm2Tensile Strength N ... me T89/B(13K) Lift Guide Rail,Top Quality,SJEC,Hyundai,Guangri Supplier Approved Supplier Elevator Guide Rail,Steel Bar