1. Casting Parts-Gearbox 2. Casting methods: Sand casting, Pressure casting 1. Casting Parts-Gearbox2. Casting methods: Sand casting, Pressure casting, lost wax casting...3. Materials: Grey iron, Nodular Iron, Malleable iron4. Excellent Quality Control, Good Price. Fast Delivery! Gearbox used for railway&transport&railway tank,hopper,flat,wagon&train&freight transport