We understand the importance of the production process and quality control system for sliding door and window glass. In the production of sliding door and window glass, there are stricter requirements for the selection of raw materials, manufacturing stan
Working Principle: Plunder contacts medium directly. With reciprocation of the plunger,volume of working chamwer is changed cyclically, so as to such in and discharge the medium. Features: ? Adopt patented stuffing with superior sealing performance and lo