GB/T 22888-2008.Leather- Pbysical and mechanical tests-Determination of cold crack temperature of su...
GB国家标准
GB国家标准
GB国家标准
GB/T 22888-2008 皮革物理和机械试验表面涂层低温脆裂温度的测定
GB/T 22888-2008.Leather-Physical and mechanical tests一Determination of cold crack temperature of sur...