GB/T 20564.12-2019汽车用高强度冷连轧钢板及钢带第12部分:增强成形性双相钢国家标准
英文:Continuously cold rolled high strength steel sheet and strip for automobile—Part 12:Dual phase steel with high formab...
英文:Continuously cold rolled high strength steel sheet and strip for automobile—Part 12:Dual phase steel with high formab...