SAE J2745 DP 490T/290Y冷轧钢带/冷轧板 ¥5.06 SAE J2745 DP 590T/340Y冷轧钢带/冷轧板 ¥5.06 SAE J2745 DP 690T/550Y冷轧钢带/冷轧板 ¥5.06 SAE J2745 DP 780T/420Y冷轧钢带/冷轧板 ¥5.06 SAE J2745 DP 980T/550Y冷轧钢带/冷轧板 ¥5.06 SAE J403 SAE 1006冷轧钢带/冷轧板 碳素结构钢 ¥4.35