GB/T 9450-2025
钢件渗碳淬火硬化层深度的测定
Determination of the case hardening depth for steel
- 实施日期
- 2026-03-01
- ICS 分类
- 25.200
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
找到 3,504 条
GB/T 9450-2025
Determination of the case hardening depth for steel
GB/T 18268.21-2025
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Acceptance inspection of electron beam welding machines—Part 5: Measurement of run-out accuracy
GB/T 46075.4-2025
Acceptance inspection of electron beam welding machines—Part 4: Measurement of welding speed
GB/T 46075.3-2025
Acceptance inspection of electron beam welding machines—Part 3: Measurement of beam current characteristics
GB/T 46075.2-2025
Acceptance inspection of electron beam welding machines—Part 2: Measurement of accelerating voltage characteristics
GB/T 46075.1-2025
Acceptance inspection of electron beam welding machines—Part 1: Principles and acceptance conditions
GB/T 46082.2-2025
Safety devices for gas welding equipment—Part 2:Other devices
GB/T 46082.1-2025
Safety devices for gas welding equipment—Part 1:Flame arrestor
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Technical specifications of energy-saving combustion equipment for heat treatment
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Laser surface hardening of iron and steel parts
GB/T 46229-2025
Rubber hoses for sand and grit blasting
GB/T 34880.2-2025
Test conditions for 5-axis simultaneous machining centers—Part 2: Testing of the accuracy for vertical machine
GB/T 18570.9-2025
Preparation of steel substrates before application of paints and related products—Tests for the assessment of surface cleanliness—Part 9: Field method for the conductometric determination of water-soluble salts