vacuum tempering furnace

... 空气回火炉 air tempering furnace 真空回火炉 vacuum tempering furnace 调温器回火炉 attemperator ...

 tempering vacuum furnace

... 真空及燃油泵测验器：vacuum and fuel pump tester 真空回火炉：tempering vacuum furnace 真空黄化器：xanthomat ...