ZHONGGUO RUICHENG IMPORT&EXPORT INDUSTRIAL LIMITED [China]

Pipes and Tubes for Ship-BuildingSTANDARD：GB/T5312—china national standardCLASSIFICATION OF SHIPS:ABS,Website:http://www.ruichengsteel.com, DNV, LR, BV, CCS, KR, NKGRADES：StandardGrade/Classification of shipsGB5312320, 360, 410, 460, 490ClassificationABS, DNV, LR, BV, CCS, KR, NKSIZE RANGE:1/2"-38" O.D. x 2-120mm Thickness