... frame, bumper back beam, chassis beam, cross beam, radiator support, steering column, control arm, pipe joint, lower arm/ ... Vehicle body Tubular partssuch as: Instrument panel support, front side member, radiator support, seat frame, side rail, A pillar, ... Member, etc 3) Engine Hydroforming Tubular parts:such as: Camshaft, crankshaft, exhaust manifold, catalytic converter, muffler front, etc 4 ...