GB-T 26921-2011 电机系统 风机、泵、空气压缩机 优化设计指南
ISO 14617-1-2025.pdf
ISO-TS 19466 2017 Electrically propelled mopeds and motorcycles Test method for evaluating performance of regenerative braking systems.pdf
ISO 4979 2023 Water quality — Aquatic toxicity test based on root re-growth in Lemna min.pdf
ISO 9175-1 1988 Tubular tips for hand-held technical pens using India ink on tracing paper —.pdf
ISO 19095-1 2015 Plastics — Evaluation of the adhesion interface performance in plastic-metal assemblies — Part 1 Guidelines for the approach.pdf
ISO IEC 30107-3 2023 Information technology — Biometric presentation attack detection — Part 3 Testing and reporting.pdf
ISO 5827 1983 Spot welding — Electrode back-ups and clamps.pdf
ISO 8044 2020 Corrosion of metals and alloys Vocabulary.pdf
ISO 7617-3 1988 Plastics-coated fabrics for upholstery — Part 3 Specification for polyurethane-coated woven fabrics.pdf
ISO 4796-1 2016 Laboratory glassware Bottles Part 1 Screw-neck bottles.pdf
GB-T 983-2012 不锈钢焊条.pdf
GB-T 1567-2003 薄型 平键.pdf
GB-T 5009.220-2008 粮谷中敌菌灵残留量的测定.pdf
GB-T 7621-1987 在电话自动交换网和点对点二线租用电话型电路上使用的标准化的1200比特-秒双工调制解调器.pdf
GB-T 3788-1995 真空电容器通用技术条件.pdf
GB-T 15169-2003 钢熔化焊焊工技能评定.pdf
GB-T 22047-2008 土壤中塑料材料最终需氧生物分解能力的测定 采用测定密闭呼吸计中需氧量或测定释放的二氧化碳的方法.pdf
GB-T 4607-2006 道路车辆 半挂车牵引座90号牵引销的基本尺寸和安装、互换性尺寸.pdf
GB-T 10156-2009 水准仪.pdf
GB-T 17272.2-1998 集装箱在船舶上的信息 电传数据代码.pdf