GB/T 39507-2020皮革物理和机械试验耐磨性能的测定:马丁代尔球盘法标准
英文:Leather—Physical and mechanical tests—Determination of abrasion resistance:Martindale ball plate method GB/T 39507-20...
英文:Leather—Physical and mechanical tests—Determination of abrasion resistance:Martindale ball plate method GB/T 39507-20...