NB-T 51026-2014 煤矿矿井水深度处理 反渗透工艺技术要求
ISO 10816-7 2009 Mechanical vibration — Evaluation of machine vibration by measurements on non-rotating parts — Part 7 Rotodynamic pumps for industrial applications, including measurements on rotating shafts.pdf
ISO IEC 27033-4 2014 Information technology — Security techniques — Network security — Part 4 Securing communications between networks using security gateways.pdf
ISO 17905 2015 Ships and marine technology — Installation, inspection and maintenance of container securing devices for ships.pdf
ISO 9974-1 1996 Connections for general use and fluid power — Ports and stud ends with ISO 261 threads with elastomeric or metal-to-metal sealing — Part 1 Threaded ports.pdf
ISO 4264 2018 Petroleum products Calculation of cetane index of middle-distillate fuels by the four variable equation.pdf
ISO-IEC 14496-22 2019-AMD2 2023 Amendment 2 - Information technology - Coding of audio-visual objects - Part 22 Open Font Format - Extending colour font functionality and other updates.pdf
ISO 20765-5 2022 Natural gas — Calculation of thermodynamic properties — Part 5 Calculation of viscosity, Joule-Thomson coefficient, and isentropic exponent.pdf
ISO IEC TR 29181-1 2012 Information technology — Future Network — Problem statement and requirements — Part 1 Overall aspects.pdf
ISO TR 21891 2017 Aerospace electrical requirements — Sleeves and moulded shapes — Specifications for aircraft use.pdf
ISO 6624-2 2016 Internal combustion engines — Piston rings — Part 2 Half keystone rings made of cast iron.pdf
GB-T 2987-1996 电子管参数符号.pdf
GB-T 33381-2016 汽车涡轮增压器用橡胶软管 规范.pdf
GB-T 25980-2010 道路车辆 旅居挂车和轻型挂车的连接球 尺寸.pdf
GB-T 23768-2009 无机化工产品 火焰原子吸收光谱法通则.pdf
GB-T 21272-2007 蒸汽流真空泵性能测量方法 泵液返流率和加热时间的测量.pdf
GB-T 30204-2013 飞机液氧加注接头配合尺寸.pdf
GB-T 8590-2018 土方机械 推土机 术语和商业规格.pdf
GB-T 24733-2023 等温淬火球墨铸铁件.pdf
GB-T 13829.3-2004 槽销 中部槽长为1-3全长.pdf
GB 4706.62-2008 家用和类似用途电器的安全 商用电水浴保温器的特殊要求.pdf