... grade : Q420 Specifications 1.Standard: ABS,BV,CCS,DNV,GL,KR,LR,NK,RINA,GB 2.Grade: A/B/C/D ... quality carbon steel plate1.Standard: ABS,BV,CCS,DNV,GL, KR,LR,NK,RINA2.Pretreatment/ Heat Treatment: TMCP, Q &T, N ... ,reasonable price and best service StandardABS,BV,CCS,DNV,GL,KR,LR,NK,RINAGrade A/B/C/D/E Q235 Q345 ...