... Final products: Fuel Oil, Crude Carbon Black , Steel Wires and Combustible Gas Fuel oil: 40%-45%,widely used in Industries such as ... after deep processing. Steel Wires:12%--15%, sold or reprocessing. Combustible Gas: about 5%, can be recycled and used during process as ... collected here. Vacuum device vaccum system will guarrantee no oil gas leak ,safety ,and environment protection and energy saving and ...