专利 一种增柔剂及其制备方法和应用
ISO 2811-3 2023 Paints and varnishes — Determination of density — Part 3 Oscillation met.pdf
ISO 8145 1994 Thermal insulation — Mineral wool board for overdeck insulation of roofs — Specification.pdf
ISO 8025 2024 Ergonomics of the thermal environment — Management of workin.pdf
ISO 21940-2 2017 Mechanical vibration — Rotor balancing — Part 2 Vocabulary.pdf
ISO 3765 1998 Timekeeping instruments — Wristwatches — Dimensions of bracelet-to-case fastening elements.pdf
ISO 7176-3 2012 Wheelchairs — Part 3 Determination of effectiveness of brakes.pdf
ISO 23599 2019 Assistive products for blind and vision-impaired persons — Tactile walking surface indicators.pdf
ISO IEC 21122-2 2022 Information technology — JPEG XS.pdf
ISO 19250 2010 Water quality — Detection of Salmonella spp..pdf
ISO 9773 2024 Plastics Determination of burning behaviour of thin flexible vertical specimens in contact with a small flame ignition source.pdf
GB-T 3319-2015 电力机车和电动车组额定功率的确定.pdf
GB-T 20159.4-2011 环境条件分类 环境条件分类与环境试验之间的关系及转换指南 无气候防护场所固定使用.pdf
GB-T 15397-1994 电影录音控制室、鉴定放映室及室内影院A环、B环电声频率响应特性测量方法.pdf
GB-T 13077-2024 铝合金无缝气瓶定期检验与评定.pdf
GB-Z 41359-2022 土壤质量 呼吸曲线法测定土壤微生物区系的丰度和活性.pdf
GB-Z 18390-2001 信息技术 90 mm盒式光盘测量技术指南.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 20439-2006 印刷技术 印前数据交换 用于四色印刷特征描述的输入数据.pdf
GB-T 16674.2-2016 六角法兰面螺栓 细牙 小系列.pdf
GB 25723-2010 点火枪安全与质量.pdf