We heat our products by medium frequency to have

stable performance  and test them by automatic go-no-go test equipment, in order to produce spline shafts with highly quality.

with torsional resistance

highly polished; no corrosion; no burr

Our products have passed the standard attestation of QS9000 quality system which is for auto industry.

Firstly,the product adopts the high quality alloy steels 40Cr,self-designing and make the mold by ourselves.

Secondly, the product forging, quenching and tempering make it  thinning internal organization, eliminate internal osteoporosis and have high tensile strength, yield strength and fatigue strength

Thirdly, it has good toughness and long service life and very good cutting sex.

Lastly, product machining allowance is small, fast delivery time, for your process to improve work efficiency descending, low consumption costs have laid a good foundation