GB/T 34225-2017浸胶芳纶直经直纬帆布技术条件和评价方法国家标准
英文:Dipped aramid straight warp straight weft canvas technical requirements and evaluation methods GB/T 34225-2017介绍: 国家标...
英文:Dipped aramid straight warp straight weft canvas technical requirements and evaluation methods GB/T 34225-2017介绍: 国家标...