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粉末渗金属
Powder diffusion metallizing
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热处理常用淬火介质 技术要求
The specification of quenching medium for heat treatment
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高、中温热处理盐浴校正剂
High and medium tempereture salt bath rectinfier
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钢的锻造余热淬火回火处理
Remaining heat from forging for quenching and tempering of steel
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热处理质量控制要求
Quality control requirement for heat treatment
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钢铁零件强化喷丸的质量检验方法
Methods of quality inspection on shot-peening for steel-iron parts
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中碳钢与中碳合金结构钢马氏体等级
Martensite grade of medium-carbon steel and medium-carbon alloy structural steel
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化学热处理渗剂 技术条件
Technical requirement of medium for thermo-chemical treatment
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可控气氛分类及代号
Classifications and symbols of controlled atmospheres
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