... :EF+LF+VD+Forged High quality and competitve price Quality Square Steel Q235Main MaterialQ195,Q235,Q345,ST37,ST52,16MnBrand Qualiy GradeS20C ... TermsL/C,TTFOB(USD)400-1500/metric tonDelivery ConditionHR,TMCP,Q&T,N,T,N&TTestUltrasonic test,HIC test,Bend test ... as station boiler superheater collector, large-diameter pipe plate structure. Square steel