1) Suspension with axle together

 2) Height of towing plate: 1180mm, 1210mm, 1230mm, 1250mm, 1300mm

 3) Various suspension: 2 axle suspension, 3 axle suspension and 4 axle suspension

 4) Leaf spring: 8 leaf, 9 leaf ,the quantity is optional

 5) Leaf spring width: 90mm, 100mm, 120mm

 6) Balance arm pin: 50, 60,70

 7) Hanger: material Q235; thickness 8mm;10mm for option

 8) Equalizer: thickness 8mm; 10mm for option

9) We can produce according to your samples, drawings

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

famous trailerbase—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.

1. 10years experience on trailer parts offers you most professional consulting and solutions.

2. Factory back up, complete production lines with high-tech machines

(automatic welding machine, automatic stamping machine, plasma cutting machine, advanced painting machine...)

3. After-sales:life time service