机械冶金 mechanical metallurgy

机械冶金学 [冶] mechanical metallurgy

屑以块状机械冶金 bulk mechanical alloying

常州市机械冶金工业局 the Bureau of Mechanical and Metallurgical Industries of Changzhou Municipal Government

冶金机械 Metallurgy Machinery ; metallurgical machinery

供应冶金机械设备 Metallurgical Machinery ; Tube Welding Machine

冶金机械部件 Metallurgy Machinery Parts

冶金机械工程师 Metallurgical Machinery Engineer

冶金机械及自动化 Metallurgical machinery and automation