1.steel grade:S45C 2.diameter:150-800mm 3.process:EF+LF+VD+Forged High quality and competitve price Quality Square Steel Q235Main MaterialQ195,Q235,Q345,ST37,ST52,16MnBrand Qualiy GradeS20C-S55CPayment TermsL/C,TTFOB(USD)400-1500/metric tonDelivery ConditionHR,TMCP,Q&T,N,T,N&TTestUltrasonic test,HIC test,Bend test,Tensile test,Impact testDetection StandardChina:JB4730,GB/T2970 America:A435,A577, ...