There are many types of denaturalization depending on the kinds of raw gases or the usage of product gases. Gas for gas carburizing, produced by combining propane, butane, or natural gas with air, and heating them at a high temperature is called endothermic gas, or generally called RX gas.

Put the converted gas at the gas generator into the gas carburizing furnace for carburizing operations.The gas put into the furnace is called carrier gas, and gas carburizing uses RX gas as carrier gas.

Produced by a controlled-atmosphere gas generator during carburizing, carbonitriding, brazing, sintering bright quenching, non-oxidation quenching, or caron restoration.