GB/T 39902-2021.Technical specification for the levitation control system of medium-low speed maglev vehicle of the urban rail transit.1范围GB/T 39902规定了城市轨道交通中低...
GB/T 39894-2021.Evaluation items and requirements of interior decoration for ship.1范围GB/T 39894规定了评定船舶内装质量的总则、评定项目、评定内容及要求、...
GB/T 39892-2021.Specification of reporting and processing of motor vehicle product defect clue.1范围GB/T 39892准规定了汽车产品缺陷线索报告提交方式、缺陷线索报...
GB/T 25387.2-2021.Wind turbines generator system-Full-power converter-Part 2 :Test method.1范围GB/T 25387的本部分规定了风力发电机组(以下简称“机组”)全功率交...
GB/T 25387.1-2021.Wind turbines generator system-Full-power converter-Part 1:Technical condition.1范围GB/T 25387的本部分规定了风力发电机组全功率交直交电压型变...
GB/T 39789-2021.Non-destructive testing of welds- Eddy current-video integrated testing method of metal composites weld.1范围GB/T 39789规定了采用涡流视频集成技术检测金...
GB/T 39959-2021.Liquid pumps and pump units一Noise test code-Grades 2 and 3 of accuracy.1范围GB/T 39959规定了液体泵或泵机组(见4.1)噪声试验有效实施的相关信息...
GB/T 3480.2-2021.Calculation of load capacity of spur and helical gears-Part 2: Calculation of surface durability (pitting).1范围GB/T 3480的本部分规定了外啮合与内啮合渐...
GB/T 39743-2021.Plain bearings-Thermoplastic bushes-Dimensions and tolerances.1范围GB/T 39743规定了依据ISO 12128生产的带有或不带润滑油槽的压人式热塑性塑料轴...
GB/T 7308.1-2021.Plain bearings-Thin-walled half bearings with or without flange-Part 1:Tolerances , design features and methods of test.1范围GB/T 7308.1规定了外径Do至250 mm整...
