GB/T 5801-2020.Rolling bearings-Needle roller bearings with machined rings-Boundary dimensions , geo...

GB 20178-2014.Earth-moving machinery-Machine safety labels-General principles. 1范围 GB 20178规定了牢固粘贴在土...

GB/T 25697-2013.Road construction and road maintenance machinery and equipment Asphalt pavement hot-...

GB/T 24611-2020.Rolling bearings-Damage and failures-Terms , characteristics and causes. 1范围. GB/T 2...

GB/T 39348-2020.Space data and information transfer systems-TM (telemetry) synchronization and chann...

GB/T 21154-2014.Earth-moving machinery- Methods of measuring the masses of whole machines , their eq...

GB 9706.243-2021.Medical electrical equipment-Part 2-43 : Particular requirements for the basic safe...

GB/T 20660-2020.Petroleum and natural gas industries-Control and mitigation of fires and explosions ...

GB/T 13871.2-2015.Rotary shaft lip-type seals incorporating elastomeric sealing elements-Part 2: Voc...

GB/T 4266-2004.Detachable pilots for use with counterbores and countersinks. 1范围 GB/T 4266规定了用于莫氏锥柄平...