Quality Standard: a hydraulic system according to GB3766-83 "hydraulic system general technical conditions" 2, hydraulic machine safety by JB3915-85 "hydraulic machine safety and technical conditions" 3, the hydraulic machine accuracy is based on GB9166-88 "four-column hydraulic machine precision" 4, hydraulic machines designed and manufactured according to JB3818-1999 "hydraulic machine technical conditions" 5, power distribution cabinets by GB50054-95 "low voltage power distribution design specifications" 6, hydraulic noise by JB9967-99 "hydraulic machine noise limit" column hydraulic machine series multi-function hydraulic four-post two beams hydraulic machine (picture) and its features multi-function hydraulic four-post two beam hydraulic machine functions and features: 1, the pressure mounted large-scale transmission gears and shafts. 2, the replacement reaction rod rubber assembly. 3, correcting distortion artifacts. Features: 1, the main part of the overall steel with 45. 2, table with movable center plate structure. 3, independently moving the pump drill. 4, can be preset pressure.