GB/T 39488-2020.Safety and control devices for gas burners and gas-burning appliances-Particular requirements-Electronic type gas and air ratio control system.1范围GB/T 39488规定了...
GB/T 39493-2020.Safety and control devices for gas burners and gas-burning appliances-Particular requirements-Pressure regulators.1范围GB/T 39493规定了使用GB/T 13611规定的城...
GB 50581-2020.Standard for allocated mine monitoring and controling system of coal industry.1总则1.0.1 为贯彻执行国家煤炭工业安全生产的法律法规和方针政策,规...
GB/T 13871.5-2015.Rotary shaft lip-type seals incorporating elastomeric sealing elements-Part 5: Identification of visual imperfections.1范围GB/T 13871.5规定了密封元件为弹性...
GB/T 4754-2017.Industrial classification for national economic activities.范围GB/T 4754规定了全社会经济活动的分类与代码。GB/T 4754适用于在统计、计划、财政...
GB/T 39395-2020.Test method for buckling resistance of the thermoplastics inspection chamber bases.1范围GB/T 39395规定了热塑性塑料检查井井座安装后,在土壤和地下...
GB/T 25388.1-2021.Wind turbines generator system-Double-fed converter-Part 1: Technical condition.1范围GB/T 25388的本部分规定了双馈式变速恒频风力发电机组(以下简...
GB/T 39890-2021.Shoulder abduction orthoses with upright.1范围GB/T 39890规定了支条式肩外展矫形器的结构、型号、基本要求、技术要求、检验方法、检验规...
GB/T 25388.2-2021.Wind turbines generator system-Double-fed converter-Part 2:Test method.1范围GB/T 25388的本部分规定了双馈式风力发电机组(以下简称“机组”)交...
GB/T 16930.2-2021.Tactile sticks-Part 2 : Performance requirements and test methods.1范围GB/T 16930.2规定了盲杖的术语和定义、结构参数、要求、试验方法、检验...
