... 20mm 3.simple circuit and easy maintenance Description of air plasma cutting machine: 1.can cut metals such as stainless steel, ... carbon steel, copper, aluminum etc.LGK-63 Air Plasma Cuttermetal cutting machinePlasma cutting machine ModelLGK-40LGK-63LGK-100LGK-160LGK-200Rated input voltage ... , foods, medicine, kitchen, environmental protection and household appliance Air plasma cutting machine(LGK100)