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1·The device is equipped with a cryogenic pump, an oil diffusion pump and a mechanical pump.

该机抽气系统由低温泵、扩散泵和机械泵组成。

2·KT-400 high vacuum oil diffusion pump, which is characterized by extreme high vacuum, pumping speed large, increase production efficiency while the vacuum pneumatic valves with automatic control.

KT - 400高真空油扩散泵，它的特点是真空极限高，抽速大，提高生产效率，同时真空气动阀门采用自动控制。

3·Gonghua brand series diffusion pump oil is the work fluid used by metal diffusion pumps and glass diffusion pumps in the process of vacuum pumping.

巩华牌系列扩散泵油是金属扩散泵及玻璃扩散泵真空抽气时使用的工作液。