GB/T 39141.2-2020无机和蓝宝石手表玻璃第2部分:用胶粘或密封圈装到表壳上的配合标准
英文:Mineral and sapphire watch-glasses—Part 2:Assembly to the case by adhesive or using a gasket GB/T 39141.2-2020介绍: 国家标...
英文:Mineral and sapphire watch-glasses—Part 2:Assembly to the case by adhesive or using a gasket GB/T 39141.2-2020介绍: 国家标...