Walking system uses variable displacement piston pump and quantitative hydraulic motor 2 tons roller, CVT, walking around four tons roller, commutation convenient; armrest can be raised to reduce the storage space transportation; has the "Back" forced commutation lever, the operator Safer; gasoline electromechanical start vibration control 5 t roller electromagnetic clutch, operation more easy and convenient; surface spray, beautiful appearance, rust and corrosion. Centrifugal force applied to the construction of low pitch, and high centrifugal force applied to granular subbase construction materials. Air filtration system features a secondary cyclone filters and two tons roller, roller Quzhou, Shandong Heavy Jin Jin provided by Shandong Heavy Machinery Co., Ltd. Heavy Machinery Co., Ltd. Shandong Jin (www.dajinzg.com) strong, credible, Shandong Jining compaction machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shandong Jin Heavy and you hand into the brilliant, for a better future!