Profile: Beijing Zehua Chemical Engineering Co., Ltd. supplies mass transfer equipment. We produce many tower internals of advanced chemical devices such as serial EDV trays, structured packing, random packing, inlet gas distributor and liquid distributor. Our tray with bubbling promoter design prevent leakage, provide good bubble condition, and promote vapor liquid mass transfer and the higher liquid height at the tray inlet offer good liquid seal for the downcomer & prevent the vapor pass through the downcomer.