GB/T 38465-2020.Test method of artificial leather and syn thetic leather-Determination of cold resis...
GB国家标准
GB国家标准
GB国家标准
GB/T 38465-2020 人造革合成革试验方法 耐寒性的测定
GB/T 38465-2020.Test method of artificial leather and synthetic leather-Determination of cold resist...