光亮淬火 meaning in English

bright hardening
bright quenching

Our major products include vacuum oil quenching furnace , vacuum high pressure gas quenching furnace , vacuum carburizing furnace , vacuum annealing furnace etc . this equipment can be widely employed in bright hardening of die steel , bearing steel , and spring steel
本公司主要产品有：真空油淬炉真空高压气淬炉真空渗碳炉真空退火炉等。该设备可广泛应用于工模具钢轴承钢弹簧钢等光亮淬火。