专利 区块链数据存储方法及装置、电子设备
ISO 24496 2021 Office furniture Office chairs Methods for the determination of dimensions.pdf
ISO 11699-2 2018 Non-destructive testing Industrial radiographic films Part 2 Control of film processing by means of reference values.pdf
ISO 6251 1996 Liquefied petroleum gases — Corrosiveness to copper — Copper strip test.pdf
ISO 14856 2001 Timekeeping instruments — Wristwatch-cases — Fixing dimensions of non-spring-bar types.pdf
ISO 13909-5 2016 Hard coal and coke — Mechanical sampling — Part 5 Coke — Sampling from moving streams.pdf
ISO 10140-4 2021 Acoustics — Laboratory measurement of sound insulation of building elements — Part 4 Measurement procedures and requirements.pdf
ISO 11082-1992Certification scheme for welded fabric for the reinforcement of concrete structures fi.pdf
ISO TR 2822-2 2017 Leather — Raw cattle hides and calf skins — Part 2 Guidelines for grading on the basis of mass.pdf
ISO 10079-1 2022 Medical suction equipment — Part 1 Electrically powered suction equipment.pdf
ISO TS 21237 2020 Nanotechnologies — Air filter media containing polymeric nanofibres — Specification of characteristics and measurement methods.pdf
GB-T 34423-2017 小艇 甲板安全索具和安全绳 安全要求和试验方法.pdf
GB-T 9580-2009 标准参比炭黑的鉴定方法.pdf
GB-T 7674-2020 额定电压72.5kV及以上气体绝缘金属封闭开关设备.pdf
GB-T 9258.1-2000 涂附磨具用磨料 粒度分析 第1部分 粒度组成.pdf
GB-T 21480-2008 船舶与海上技术 油舱及水舱放泄装置.pdf
GB-T 10322.5-2024 铁矿石 交货批水分含量的测定.pdf
GB-T 39312-2020 铜及铜合金的焊接工艺评定试验.pdf
GB-T 24475-2009 电梯远程报警系统.pdf
GB-T 1730-2007 色漆和清漆 摆杆阻尼试验.pdf
GB-T 38005-2019 眼镜镜片 未割边镜片的基本要求.pdf