亚洲播播_www.白浆_日本一本二本三区波多野结衣_AV高潮瞬间合集,高潮动态图啪啪吃奶图动态,91人妻大屁股合集,天天躁日日躁狠狠躁网站,国产成人啪精品视频网蜜芽,免费观看黄色网址,一区二区高清在线观看,99精品久久只有精品

Industry:

The laboratory generally needs to use a silent oil-free air compressor to provide high-quality compressed air for the experiment. The laboratory often uses air supply equipment to assist the actual risk. Once the purity of the compressed air is not enough, it is easy to react with chemical substances, resulting in the failure of the actual risk, and in serious cases, it will cause safety accidents.

Application scenario:

1. No need to add lubricating oil, and the air is cleaner.

2. The air compressor is light, compact in structure, good in balance, and no installation foundation is required.

3. Slight vibration, no need to install pulsation elimination device.

4. Imported bearings, high wear-resistant sealing materials and valve plates are used for longer service life.

5. Motor protection: current and voltage automatic protection. High temperature thermal protection