短語詞組短語steel plate grade 鋼板等級steel quality grade 鋼材質(zhì)量等級indicatingmethod of steel product grade 鋼鉄産品牌號表示方法New Steel Grade List 新鋼種系列縂結(jié)v steel grade v 鋼種pd steel grade pd3 鋼種q b steel grade q235b 鋼high steel grade 高鋼級X56 steel grade X56 鋼級 返回 steel grade