合金结构钢:208520902101210221032106弹簧钢:177017741778…….易切削钢:1912121419221926194019571973SUM11SUN12SUM21SUM22SUM22LSUM23SUM23LSUM24LSUM25日本JIS标准不绣钢耐热钢牌号:SUS201SUS202SUS309SSUS310SSUS316SUS316LSUS316NSUS316LNSUS316FSUS317联系电话：15913779293欧阳小姐)