主营:65MN弹簧钢带+50#钢带+40MN钢带+45#钢带+60#钢+60Si2mnA钢带+T8A-T9A+T10A+SK7+SK5+50CrVA+不锈钢带+冷轧钢带+热处理弹簧钢带+卷尺带+合结带+双金属锯背带+高强度淬火带