... die stamping. 3, tank welding butt and leaves a large rotary tooling with high accuracy. 4, the hydraulic system are all ... to achieve operating around three to one. 7, the concrete mixer tank pre-treatment after welding, using shot preening to achieve ... , Fire truck, tractor head, semitrailer tank, low bed trailer, concrete mixer truck, garbage truck, fuel tank truck, crane truck, van truck ...