Petroleum testing is the analysis during upstream, midstream, and downstream production processes of petroleum products. It is most commonly used to test petroleum product, its product components, byproducts of crude oil, fuel, natural gas, upstream oil and gas and other formats of petroleum. - Heating aluminum black is placed in tank directly, with bracket. High quality enamel tank has fan circulation and lighting inside. New V type door opening mode, completely transparent high temperature resistant glass door.