GB/T 3480.5-2021 直齿轮和斜齿轮承载能力计算第5部分:材料的强度和质量
GB/T 3480.5-2021.Calculation of load capacity of spur and helical gears-Part 5 :...
国家标准2023.08.07
GB/T 3480.5-2021.Calculation of load capacity of spur and helical gears-Part 5 :...
国家标准2023.08.07
GB/T 40136-2021.Technical specifications for planting pseudostellaria radix.1范围G...
国家标准2023.08.07
GB/T 40285-2021.Technical specification for dam safety analysis and evaluation s...
国家标准2023.08.07
GB/T 40120-2021.Agricultural irrigation equipment-Thermoplastic collapsible hose...
国家标准2023.08.07
GB/T 23294-2021.Abrasion resistant refractory materials.1范围GB/T 23294规定了耐磨耐火材料的术...
国家标准2023.08.07
GB/T 40237-2021.Test method for ignitability of foamed plastic-Welding spark met...
国家标准2023.08.07
GB/T 40007-2021.Nanotechnology—Contacting methods for measuring the resistivity...
国家标准2023.08.07
GB/T 17204-2021.Terminology and classification of alcoholic beverages.1范围GB/T 17...
国家标准2023.08.07
GB/T 40006.2-2021.Plastics- Recycled plastics- Part 2: Polyethylene( PE) materia...
国家标准2023.08.07
GB/T 40006.3-2021.Plastics- Recycled plastics- Part 3 : Polypropylene( PP) mater...
国家标准2023.08.07