Heavy duty trailer suspension parts leaf spring from China professional trailer manufacturer

Heavy duty trailer suspension parts leaf spring from China professional trailer manufacturer     

1.Different Types Of Trailer Truck Leaf Springs 

2.Manufacturing process:

1.Shearing of flat bar

2.Center hole punching 

3.End heating process forming

4. Heat treatment:

       a. heating

       b. camber forming

       c. quenching

       d. tempering

5. surface preparation:

       a. shot penning / stress peening

       b. painting 

6. Eye bush preparation process:

       a. Eye reaming / eye boring

       b. Bush insertion / bush reaming

7. Assemble:

       a. Presetting & load testing

       b. Paint touch-up

       c. Marking &packing

3.Product Pictures:

 4.About us

Founded in 2004, Shandong Liangshan Zhengyang Trailer Parts Co., Ltd. is located 

in Jining, Shandong. We are a professional enterprise engaged in the manufacture 

and sale of Trailer suspensions, Trailer axles, Trailer landing gears, Semitrailers 

5.Our workshop

 6.The exhibition show

7  .Our certification