SHK adopts the techniques of manufacturing clutch of " ZF Sachs" and " Lok" , and examines the products strictly according to "QC/T27-2004" and other related standards. GF mold and MF mold in production adopt elastic driven plate and auto-compensation third-order reverses amortisseur to minor vibration, reduce impact and lower noise. These new types of clutches' surface of friction are well-distributed, jointed steady and serviced long life. They are used to match with 12-180 horsepower tractors and 180-460 horsepower automobiles. In order to achieve the international standard, the company purchased advanced clutch part testing machine and overall unit testing machine to guarantee the quality and the performance of the products.