Compressed natural gas (CNG) is a fuel gas consisting primarily of methane (CH4) compressed to less than 1% of its volume at standard atmospheric pressure. It is stored and dispensed in rigid containers at a pressure of 20-25 MPa (2,900-3,600 psi), usually in cylindrical or spherical shapes.CNG is u

Garbage truck and its typesGarbage trucks are trucks specifically designed to collect municipal solid waste and transport it to solid waste treatment facilities such as landfills, recycling centers, or transfer stations. In Australia, they are often referred to as refuse trucks or dump trucks, while