... Product Presentation : It’s very important to detect coal gas ,liquefied gas constituents content for caloric value and safe produce.GS- ... of H2 , O2,N2,CH4, CO2 ,CO from coal gas, liquefied gas . It’s widely used as its conspicuous .We can ... data is worked by auto chromatograph station Temperature we use intelligent temperature controller to control the column compartment temperature ,hydrogen flame ...