Our main products:                                                                               

  Original developed patent owned trailer fifth wheel--MAIN PRODUCTS

1. German BPW suspensions and axles

   American FUWA type suspensions and axles

2. king pin 50# & 90# 

3 .leaf spring 900 width*13 thickness*10 pcs ( hot seller ) 

4 .landing gear capacity 25T & 28T, single side & linkage 

5 .brake chamber single & double 

6 .fifth wheel 50# & 90 # 

7. air tank 20L 30L 40L 60L

8 .twist lock molten & forged 

1 OEM manufacture in semi trailer parts

2 Can be customized

3 ISO9001:2000 certificate

4 steady and large supply

5 reasonable and competitive price

6 efficient and professional service on export trade 

 Shandong Zhengyang Machinery CO.,LTD is a professional manufacture in semi-trailer parts,located in the

famous trailer base—Liangshan,Jining,Shandong province.8000 square meters workshop,over 200 professional

workers,ISO9001:2000 certificate in product quality, neary 10 years’ experiences in producing semi trailer

parts,enjoying high reputation,I’m sure we could serve you well.