SAE J2329 Grade 5冷轧钢带/深冲压用冷轧板 ¥5.05 SAE J2329 CR1 U冷轧钢带/深冲压用冷轧板 ¥5.05 SAE J2329 CR2 U冷轧钢带 ¥5.05 SAE J2329 CR3 U冷轧钢带 ¥5.05 SAE J2329 CR4 U冷轧钢带/深冲压用冷轧板 ¥5.05 SAE J2329 CR5 U冷轧钢带/深冲压用冷轧板 ¥5.05