one.Item parameters
 

two.Normal Procedure

1)cutting  
use the plasma slicing device lower the metal to little elements use for appropriate welding and splicing
 
2)welding  
following steel chopping approach the following step is welding .this process the principal work is beam welding .the leading plate-base plate and the
middle  plate  will  be welding together .  this method will be use submerged arc welding approach.this type of welding is very
unique .its solely used in I beam welding .right after this welding process other areas of the trailer will be use diverse welding way
for diverse metal-argon arc welding-electric arc welding-guide welding-fuel welding and so on
 
3)blasting
this method is use for the first phase of area cleanness-tension relief-derusting ahead of paiting .
 
4)electrophoresis coating  
this method use for a lot more depth floor cleanness
 
5)epoxy zinc primer spray coating 
this approach is the lasting one just before paiting .soon after this method the trailer an be paiting
 
six)assembly
right after all the method we have mationed .the final treatment of the trailer is assembly.this method all the parts will be assemly .it which includes tire-wheel rim-king pin-landing gear-suspension-spring leaf -brake chamber-air wiring-electric power wiring-brake program and so on

seven)packing 
The very last method is packing .all the trailer use diverse packing way as JCPTer requirment.soon after packing the trailer can be on the way to the JCPTer