... ) Zinc-galvanized Finished Non-rust & Long using cycle All garage door hardware are made of thicker steel plate.The surface ... treatment is Zinc-Galvanized Process Treatment, Non-rust. Garage Door Hinges include 1#, 2#, 3#, 4#, 5# Hinges ... can be organized by our factory. Garage Door Parts --- Hinges, Torsion Springs, Rollers, Cable Drums, Track Kits, Brackets, Emergency Lock, Handle