shandong tiansheng machinery co.,ltd ,a private enterprise specializing in development,selling and producting the agricultural machinery,is one of the drafter of the industry standard of the disc harrow and share plough in china,which is China's outstanding agricultural expert, we have self-supported import and export right,In july2006,our company has passed ISO9001:2000 qually management system certification our company is located in New and High Technology Development Zone Yucheng,Shandong,China province,covering an area of 32000square meters including more tan 15000square meters standard workshop,there are 120sets of various machinery equipment.158 employees and 66 engineers and technicians. we mainly produce with the brand of Qing Quan :disc harrow,disc plough,share plow,rotary tiller,potato planter,potato harvester,cultivator,subsoiler,seeder,box blade,ridger,ditcher,stubble cleaner,hole digger,fertilizer spreader,farming traielrs and so on.We can yearly produce 20,000sets of complete machines for each specification and 300000pcs of plough discs and harrow dics.They are exported to more than 66 countries and regions,such as USA,France,Germany,Russia,Switzerland,Zimbabwe,Ukranine,Nigeria,South america.