GB/T 40936-2021皮革物理和机械试验服装革防水性能的测定标准
英文:Leather—Physical and mechanical tests—Determination of water repellency of garment leather GB/T 40936-2021介绍: 国家标准《皮革...
英文:Leather—Physical and mechanical tests—Determination of water repellency of garment leather GB/T 40936-2021介绍: 国家标准《皮革...