Where can I buy a vacuum pump in Beijing Tongjia Hongrui Technology Co., Ltd.

JD.COM。 JD.COM can buy the vacuum pump of Beijing Tongjia Hongrui Technology Co., Ltd.. Vacuum pump refers to a device or equipment that uses mechanical, physical, chemical or physico-chemical methods to pump the pumped container to obtain vacuum. Generally speaking, a vacuum pump is a device for improving, generating and maintaining vacuum in a closed space by various methods. According to the working principle of vacuum pump, vacuum pump can be basically divided into two types, namely gas capture pump and gas transmission pump. Widely used in metallurgy, chemical industry, food, electronic coatings and other industries.