GB/T 6803-2023铁素体钢的无塑性转变温度落锤试验方法国家标准
英文:Test method for drop-weight test to determine nil-ductility transition temperature of ferritic steels GB/T 6803-2023介...
英文:Test method for drop-weight test to determine nil-ductility transition temperature of ferritic steels GB/T 6803-2023介...