Shipbuilding steel plate in various standards. AISI,ASTM,GB,JIS. Grade ... as H beams, I beams,angel steel and channel steel,as well as steel plates and coils sheets,etc...In the ... are a first agent of Jinxi Steel Group,Laiwu Steel group and Changzhi Steel group,which are three of the ... have CE, Mill quality certificates and so on. Shipbuilding steel plateThickness: 6~50 mmWidth: 1500~4000 mmLength: 300~ ...