GB/T 39366-2020.Leather-Tests for colour fastness- Colour fastness to crocking. GB/T 39366规定了用白色棉布在皮...
GB国家标准
GB国家标准
GB国家标准
GB/T 39366-2020 皮革 色牢度试验 耐摩擦色牢度
GB/T 39366-2020.Leather-Tests for colour fastness-Colour fastness to crocking. 1范围 GB/T 39366规定了用白色棉...