说明:收录25万 73个行业的国家标准 支持批量下载
GB-T 31841-2015 电工电子设备机械结构 电磁屏蔽和静电放电防护设计指南
ISO IEC TS 30135-3 2014 Information technology — Digital publishing — EPUB3 — Part 3 Content Documents.pdfISO 2107 2023 Aluminium and aluminium alloys — Wrought products — Temper d.pdfISO 22744-2 2020 Textiles and textile products — Determination of organotin compounds — Part 2 Direct method using liquid chromatography.pdfISO 17741 2016 General technical rules for measurement, calculation and verification of energy savings of projects.pdfISO 22975-1 2016 Solar energy Collector components and materials Part 1 Evacuated tubes Durability and performance.pdfISO 10304-4 2022 Water quality — Determination of dissolved anions by liquid chromatography of ions — Part 4 Determination of chlorate, chloride and chlorite in water with low contamination.pdfISO 22480-1 2022 Railway applications Concrete sleepers and bearers for track Part 1 General requirements.pdfISO 17248 2015 Corrosion of metals and alloys — Test method for high temperature corrosion testing of metallic materials by embedding in salt, ash, or other solids.pdfISO 4759-1 2000 Tolerances for fasteners — Part 1 Bolts, screws, studs and nuts — Pro.pdfISO 24195 2022 Road vehicles — Vocabulary and characteristics for engineering of starting devices.pdfGB-T 6398-2017 金属材料 疲劳试验 疲劳裂纹扩展方法.pdfGB-T 12807-2021 实验室玻璃仪器 分度吸量管.pdfGB-T 6534-1986 汽油气-液比测定法.pdfGB-T 119.1-2000 圆柱销 不淬硬钢和奥氏体不锈钢.pdfGB-T 11417.5-2012 眼科光学 接触镜 第5部分 光学性能试验方法.pdfGB-T 11848.7-1989 铀矿石浓缩物中卤素的测定 伏尔哈德法.pdfGB-T 38732-2020 表面活性剂 工业烷基磺酸盐试验方法.pdfGB-T 39082-2020 电阻点焊、凸焊及缝焊接头的维氏硬度试验方法.pdfGB-T 20568-2006 金属材料 管环液压试验方法.pdfGB-T 2900.50-2008 电工术语 发电、输电及配电 通用术语.pdf
