日本JIS标准结构钢牌号:SS330 SS400 SS490 SS540 SCM4400A SM400B SM400C SM490A SM490 SM490C SM490YA SM490YB SM570 CUP-Ten CUP-Ten60 FTW-52 FTW-60 FTW-70 HI-Z HI-Z Super HI-YAW-TEN HTP-52W NK-HITEN 50 NK-HITEN 60 NK-HITEN 70 NK-HITEN 80 NK-HTEN 100 River Ace 60 River Ace 70 River Ace 80 Welten 50 Welten 60 Welten
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