... and energy-saving,3. Technical parameter:3.1 Fuel: natural gas ,3.2 With two burnner (300000kcal),3.3 Capacity: about T,3.4 Max. ... degrees,3.8 Outside of the furnace: Lm ×m ×m3.9 Inside of the furnace: Lm ×m ×m3.10 Temperature controller: ... position temperature control. Temperature measure with 4 positions at working area, maximum temperature difference is 5 degree,3.11 ...