產(chǎn)品介紹Roots vacuum pump consists of a pump cavity and a pair of synchronous high-speed rotation of the "8" shape rotor and a 2.5 round. The pump can not separate exhaust， must with a pump in series. In the first stage pump inlet on the front series Roots vacuum pump is composed of pump unit can improve the vacuum degree， within the effective range greatly improve the pumping rate.性能參數(shù) The can not separate exhaust， must with a in series. In the first stage inlet on the front series Roots vacuum is composed of unit can improve the vacuum degree， within the effective range greatly improve the pumping rate使用及維護In the first stage inlet on the front series Roots vacuum is composed of unit can improve the vacuum degree，注意事項 within the effective range greatly improve the pumping rate交易說明Specific details please consult our company， thank you