hot sell Q345R pressure vessel steel plate 1.T:8-700mm,1500- ... ,controlled rolling,normalizing,annealing,tempering,thermal refing,normalizing &tempering. hot sell Q345R pressure vessel steel plateMain MaterialQ345RQuality GradeA/B/C/D ... &T,N,T,N&TTestUltrasonic test,HIC test,Bend test,Tensile test,Impact testDetection StandardChina:JB4730,GB/T2970 America:A435,A577 ...