1.Coal ,wood,coconut shell,wood chips fired 2.Fed by hand 3.ISO9001,14000,approved 4.Active grate The boiler plate arch pipe, spiral pipe technologies.Solve the old boiler tube sheet cracks,Low thermal efficiency,Coal poor adaptability,and other Frequently Asked Questions.Combustion process:Fuel into the combustion chamber in the grate,Combustion flue gas into the convectionregion,then through ...