精炼型材 meaning in Chinese

standard specification for tough-pitch

Standard specification for phosphorized coppers - refinery shapes
磷铜标准规范.精炼型材
Tough - pitch fire - refined high - conductivity copper - refinery shapes
韧性火法精炼高导电性铜精炼型材
Standard specification for oxygen - free electrolytic copper - refinery shapes
无氧电解铜标准规范.精炼型材
Standard specification for high conductivity tough - pitch copper refinery shapes
高电导率韧炼铜精炼型材标准规范
Standard specification for tough - pitch fire - refined copper - refinery shapes
火法精炼工业纯铜标准规范.精炼型材