Extraspringhared cold work

同义词释义

1)Extra-spring-hared cold work,特弹簧硬冷加工2)cold hardening,冷加工硬化3)Hard cold work,硬级冷加工4)tweezers,有弹簧的镊子(光学玻璃冷加工用)5)Extra-hard cold work,特硬级冷加工(冷巴至断面缩小50.0%)6)hardening spring,硬化弹簧