Shandong HengYuan is one of the domestic key factories producing internal combustion engine piston rings. “HYPR” piston rings have a history of 10 years. With strong productive ability, advanced equipments, perfect quality inspection system ,the company strictly acts on GB/T1149.1-94, the country standard production. Trough examined by country technical department , the material, the hardness, the elasticity have all achieved standards. The products, with reliable performance, stable and high quality, are renowned both at home and abroad.
HengYuan Group is equipped with specialized technical force and also complete means of testing and measuring. Its products include three main series of piston rings, cylinder liners and crankshaft for farm machinery and automobiles. There are more than 100 varieties of these products.
