ISO 15630-1 2019 Steel for the reinforcement and prestressing of concrete — Test methods — Part 1 Reinforcing bars, rods and wire
ISO IEC 27033-4 2014 Information technology — Security techniques — Network security — Part 4 Securing communications between networks using security gateways.pdf
ISO 8790 1987 Information processing systems — Computer system configuration diagram symbols and conventions.pdf
第四章ISO14021导言sr.pdf
ISO 1953 2015 Hard coal — Size analysis by sieving.pdf
ISO 3759 2011 Textiles Preparation marking and measuring of fabric specimens and garments in tests for determination of dimensional change.pdf
ISO 3444 2023 Stainless-steel wire ropes.pdf
ISO 1948 1987 Photography — Front lens barrels up to 127 mm — Dimensions important to the connection of auxiliaries.pdf
ISO 4992-1 2020 Steel castings — Ultrasonic testing — Part 1 Steel castings for general purpo.pdf
ISO 10282 2023 Single-use sterile rubber surgical gloves — Specification.pdf
ISO 19235 2015 Analogue quartz clocks — Timing accuracy.pdf
GB-T 18301-2012 耐火材料 常温耐磨性试验方法.pdf
GB-T 19946-2005 包装 用于发货、运输和收货标签的一维条码和二维条码.pdf
GB-T 4019.1-1997 方柱立式钻床 精度检验 第1部分 几何精度检验.pdf
GB-T 23802-2023 石油天然气工业 套管、油管、接箍毛坯及附件材料用耐蚀合金无缝管交货技术条件.pdf
GB-T 5141-2005 平衡重式叉车 稳定性试验.pdf
GB-T 36638-2018 信息技术 终端设备远程供电通信布缆要求.pdf
GB-T 1871.1-1995 磷矿石和磷精矿中五氧化二磷含量的测定 磷钼酸喹啉重量法和容量法.pdf
GB-T 7291-2008 图形符号 基于消费者需求的技术指南.pdf
GB-T 21931.2-2008 镍、镍铁和镍合金 硫含量的测定 高频燃烧红外吸收法.pdf
GB-T 18308.1-2001 纤维光学转接器 第1部分 总规范.pdf