my company supplied truck parts for sinotruk, shacman, Foton, Faw and other Chinese brand trucks.
the parts including: 
driving cabin
gear pump
hydraulic valve
driven disk
spring
brake lining
rear brake pad
shaft
spide
bearing
braket
the joint of v pushrod
fuel tank
axle
brake shoe
gear box
gear wheel
double H valve
radiator
intercooler
operation cylinder
lighter
etc.