... -5 sets 5. INTRODUCTION:1,The whole gas flow type include the outer stove, three set of inner ... stoves , and the 3ton hoisting tools. 2,When one inner stove have been finished carbonization, ... Easy operate and maintain, higher safety, energy saving 2,High carbonization rate, no smoking, little pollution, 3 ... inside volume:1.8-2.0M3 3. Carbonizing time:6-8hours Cooling type: Natural cooling or forced ...