Shandong Changlin Machinery Group Co., Ltd is probably the largest manufacturer of walking tractors, diesel engines and multiple cutters in China, consisting of eight enterprises namely, Shandong Walking Tractor Manufacturing Factory, Shandong Changlin Engine Factory, Linshu Machinery Plant, Shandong Changlin Rollers Works, Changlin Farm Machinery Company, Linshu Jiuyuan Fertilizer Co.Ltd. Its major products include "Changlin" brand fully hydraulic vibration road series, "Shuhe" Brand walking tractor and diesel engine series with an annual production capacity of 400,000 sets of walking tractors, 400,000 sets of diesel engines and 1,000 sets of hydraulic vibrating road rollers. Shuhe Brand walking tractors won famous brand in China Machinery Ministry in 1997, Changlin Group passed ISO9001 Quality System Certification in 1999, and won "Advanced Quality Control Enterprise of China" in 2000. More than 4,000 people are working in the group. It's products cover more than 40% of Chinese wa