GB/T 39376-2020.Leather- Sampling -Number of items for a gross sample. 1范围 GB/T 39376规定了从生产批中抽取整张样品数...
GB/T 39376-2020 皮革 抽样 批样抽样数量
GB/T 39376-2020.Leather-Sampling-Number of items for a gross sample. 1范围 GB/T 39376规定了从生产批中抽取整张样品数量的...