temper hardening brasses回火: tempering; draw the temper; ...硬化: harden; stiffen; stiffening; ...镍: nickel铝: aluminium黄铜: yellow metal; brass下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:回火硬化镍铝黄铜，即可在微信中查询翻译
