Specification of oneTon trailer    
Overall dimension  200*(100+25*2=150)*48 cm  
Thickness of under plate  2.5 mm  
Thickness of side plate  1.8 mm  
Thickness of seat around plate  1.5 mm  
Thickness of pedal  1.8 mm  
Model of traction girder  8*8 cm  
Brake axle  7207-7209  
Thickness of support for edge of seat  18 mm  ring steel  
Material of bottom frame  8#    
Big axle  6*8 cm square tube  
Quantity of spring steel plate  9 pieces  
Tyre  650-16  
Size  65*35 cm  
Head of traction  50 mm  ring steel