Profile: Shandong Tiansheng Machinery Co., Ltd. specializes in the development and manufacture of farm machinery. We are an ISO 9001:2000 certified company. We offer disc harrow and mold board plows. Our products include rotary tillers, harvest machines, cultivators, sub-soilers, seeders, levelers, ridgers, trenchers, earth augers, and farm trailers. Discs for plough & harrow has a production line for disc producing, cleaning, and painting. We can produce discs made of spring steel 65 Mn from 254 to 960 mm in diameter, and from 3 to 12 mm in thickness. 1GQN rotary tiller is a plowing machine matched with the tractor with 12-80 horse power. The machine is suitable for operations on dry land and paddy field. The machine has the advantages of time and labor conservation, high operational quality, and low cost.