GB/T 33965-2017金属材料拉伸试验矩形试样减薄率的测定国家标准
英文:Metallic materials—Tensile testing—Determination of thickness reduction ratio for rectangular specimen GB/T 33965-201...
英文:Metallic materials—Tensile testing—Determination of thickness reduction ratio for rectangular specimen GB/T 33965-201...