1200 degrees double temperature zone high temperature tube sintering furnace, furnace tube is a corundum tube, vacuum tube furnace rated temperature of 1000 ℃, 1100 ℃, 1200 ℃, 1400 ℃, 1600 ℃, 1700 ℃, 1800 ℃, using different heating elements, Complete model, simple operation, high precision temperature control, good insulation