oil harden meaning in English
四五十年以前为了使木杆杆头防水、防湿和更加坚硬而采用的桐油浸渍法
Examples
- Steel wire for mechanical springs - oil hardened and tempered spring steel wire
机械弹簧钢丝.油硬化和回火的弹簧钢丝 - Steel wire for mechanical springs - part 2 : oil hardened and tempered spring steel wire
机械弹簧用钢丝.第2部分:油淬火和回火弹簧钢丝 - Steel wire for mechanical springs - part 2 : oil hardened and tempered spring steel wire ; german version en 10270 - 2 : 2001
机械弹簧钢丝.第2部分:油淬火和回火弹簧钢丝