cold hardening microalloyed steel
cold hardening microalloyed steel
冷硬化微合金钢
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Aging treatment is performed for microalloyed steel for cold hardening bolt, which can stabilize its microstructure, enhance its strength and reduce its residual stress.
冷作强化非调质钢螺栓经时效处理可以稳定组织、提高强度、降低残余应力。
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