GB-T 197-2018 普通螺纹 公差
ISO-TS 15923-2 2017 Water quality Determination of selected parameters by discrete analysis systems Part 2 Chromium(VI) fluoride total alkalinity total hardness calcium magnesium iron iron(II) manga.pdf
ISO TR 17772-2 2018 Energy performance of buildings — Overall energy performance assessment procedures — Part 2 Guideline for using indoor environmental input parameters for the design and assessment.pdf
ISO IEC 15961-3 2019 Information technology — Data protocol for radio frequency identification (RFID) for item management — Part 3 RFID data constructs.pdf
ISO IEC 30105-5 2016 Information technology — IT Enabled Services-Business Process Outsourcing (ITES-BPO) lifecycle processes — Part 5 Guidelines.pdf
ISO 120-1977Plastics. Phenol-formaldehyde mouldings. Determination of free ammonia and ammonium comp.pdf
ISO 18278-1 2022 Resistance welding — Weldability — Part 1 General requirements for the evaluation of weldability for resistance spot, seam and projection welding of metallic materials.pdf
ISO 8207 1996 Gas welding equipment — Specification for hose assemblies for equipment for welding, cutting and allied processes.pdf
ISO 13761 2017 Plastics pipes and fittings — Pressure reduction factors for polyethylene pipeline systems for use at temperatures above 20 degrees C.pdf
ISO 4141-1 2019 Road vehicles — Multi-core connecting cables — Part 1 Test methods and requirements for basic performance sheathed cables.pdf
ISO 1920-13 2018 Testing of concrete — Part 13 Properties of fresh self compacting concrete.pdf
GB-T 197-2018 普通螺纹 公差.pdf
GB 2548-2008 敌敌畏乳油.pdf
GB-T 21690-2008 细木工带锯条 尺寸.pdf
GB-T 8565.3-1988 信息处理 文本通信用编码字符集 第三部分 按页成象格式用控制功能.pdf
GB-T 20224-2006 数码照相机曝光指数、ISO感光度值、标准输出灵敏度和推荐曝光指数的确定.pdf
GB-T 15884-1995 电子设备用固定电阻器 第5部分 空白详细规范 精密固定电阻器 评定水平 F.pdf
GB-T 34501-2017 硬质合金 耐磨试验方法.pdf
GB-T 39344-2020 空间数据与信息传输系统 通信操作规程-1.pdf
GB-T 1268-1998 化学试剂 硫氰酸钠.pdf
GB-T 31566-2015 金属覆盖层 物理气相沉积铝涂层 技术规范与检测方法.pdf