低合金高强钢:HC260LA HC300LA HC380LA HC420LA B340LA,B410LA,CR340LA 加磷高强钢:B170P1,B210P1,B250P1,B180P2,B220P2 HC220P HC260P HC300P 双相高强钢:B240ZK,B280VK,B340VK,B400VK HC500/780DP HC550/780DP HC820/1180D