1 45# steel is through heat treatment that hardening,HRC55 is possible to be accepted.So which is more hard and durablein use but no nitroqen treatment.

2 The surface is passivated and rustless.

3 Hardness is more uniform and stable.

4 Long-life seivice  it can use in 20000kilometers.

 Packaging:Blister card, Plastic bags, Carton, Vacuum packing, Sprockets and chain set box.

Shipping: 10 days after payment.

1)We supply free samples, when you place the first order with us the freight and samples fee will be returned.

2)We supply many kinds of  motorcycle chain and sprocket sets

3)We also supply packaging service and package design.

4)produce as your sample or drawing. 

5) We provice 12 month warranty for all products .