Including product range and vehicle applications. including the new design products and some design feature. S130: introduced from DANA technology, with quiet gear operation, light weight, durability, apply for high end light truck and bus; S170: introduced from DANA technology, with quiet gear operation, disc brake, apply for luxury city bus and coach bus. S190: tandem drive axle introduced from DANA US, with bigger output torque, low gear noise, apply for heavy duty truck and tipper and tractor.