vacuum electric furnace
... vacuum drying oven 真空干燥箱,真空烘箱 vacuum electric furnace 真空电炉 vacuum equipment 真空装置 ...
[电] vacuum oven
... vacuum lightning protector 真空避雷器 vacuum oven 真空电炉 vacuum polarization 真空极化 ...
electric vacuum furnace
... electric steelmaking furnace 电气炼钢炉 electric vacuum furnace 真空电炉 electric weld pipe mill 电焊钢管轧管机 ...