... Q550CFC, NR400ZL7>. GB 16Mn, 15MnV, 15MnVN, Q460CShipbuilding and Offshore Platform Steel Plate: Classification Society Certificate: CCS,DNV ... SSC, SPWHT, Macrostructure, detection of defects, Hardness and DWTT test for pipelines steel plates are also available. We ... also supply special specification steel plates as customers' requirement. A36 AND ...