one.Item parameters
 

two.Normal Procedure

1)cutting  
use the plasma reducing device lower the metal to tiny areas use for appropriate welding and splicing
 
2)welding  
soon after steel cutting approach the next stage is welding .this process the principal operate is beam welding .the top plate-bottom plate and the
middle  plate  will  be welding jointly .  this method will be use submerged arc welding approach.this variety of welding is really
specific .its exclusively employed in I beam welding .soon after this welding approach other components of the trailer will be use different welding way
for different metal-argon arc welding-electrical arc welding-guide welding-gas welding and so on
 
3)blasting
this approach is use for the first phase of surface area cleanness-pressure aid-derusting just before paiting .
 
four)electrophoresis coating  
this procedure use for more depth surface area cleanness
 
5)epoxy zinc primer spray coating 
this process is the long lasting a single before paiting .soon after this approach the trailer an be paiting
 
six)assembly
after all the process we have mationed .the final procedure of the trailer is assembly.this process all the components will be assemly .it like tire-wheel rim-king pin-landing gear-suspension-spring leaf -brake chamber-air wiring-electricity wiring-brake program and so on

7)packing 
The very last method is packing .all the trailer use different packing way as JCPTer requirment.following packing the trailer can be on the way to the JCPTer