信通院 中国宽带发展白皮书-2019年
ISO 10423 2022 Petroleum and natural gas industries — Drilling and production equipment — Wellhead and tree equipment.pdf
ISO 5017 2013 Dense shaped refractory products — Determination of bulk density, apparent porosity and true porosity.pdf
ISO 16172 2018 Steel sheet, metallic-coated by the continuous hot-dip process for corrugated steel pipe.pdf
ISO TR 21828 2010 Guidance on standards available for preparation and testing of monolithic, unshaped refractory products.pdf
ISO TR 21784 2018 Plain bearings — Spray nozzle type directed lubrication for tilting pad bearings.pdf
ISO 12633-1 2011 Hot-finished structural hollow sections of non-alloy and fine grain steels — Part 1 Technical delivery conditions.pdf
ISO 4920 2012 Textile fabrics — Determination of resistance to surface wetting (spray test).pdf
ISO 19085-13 2020 Woodworking machines — Safety — Part 13 Multi-blade rip sawing machines with manual loading and or unloading.pdf
ISO 13543 2016 Copper, lead, zinc and nickel sulfide concentrates — Determination of mass of contained metal in a lot.pdf
ISO IEC IEEE 24748-8 2019 Systems and software engineering — Life cycle management — Part 8 Technical reviews and audits on defense programs.pdf
GB-T 17902.3-2005 信息技术 安全技术 带附录的数字签名 第3部分 基于证书的机制.pdf
GB 15146.5-1994 反应堆外易裂变材料的核临界安全 钚-天然铀混合物的核临界控制准则和次临界限值.pdf
GB-T 19386.1-2003 纺织机械与附件 纱线和中间产品的卷装 第1部分 术语.pdf
GB-T 2835-1998 陶管耐酸性能试验方法.pdf
GB-T 31578-2015 粮油检验 粮食及制品中粗蛋白测定 杜马斯燃烧法.pdf
GB-T 25921-2010 电气和仪表回路检验规范.pdf
GB-T 44020-2024 信息技术 计算机图形图像处理和环境数据表示 混合与增强现实中实时人物肖像和实体的表示.pdf
GB-T 15970.8-2005 金属和合金的腐蚀 应力腐蚀试验 第8部分 焊接试样的制备和应用.pdf
GB-T 684-2023 化学试剂 甲苯.pdf
GB 25722-2010 打火机安全与质量.pdf