... 3 Dia(mm):3/6,4/9,6/12,9/18,12/24 4. top quality ,long uselife . We ... ):3/6,4/9,6/12,7/14,9/18,12/24. 3.It can be widely used in ... different atmospheres Atmosphere Max element temperature XYX super MS 17XYX super MS 18Air1700°c1800°cNitrogen1600°c1700°cArgon Helium1600°c1700°cHydrogen1100 ... Furnace Temp(°c)14001500160016501700Surface looad of hot zone(W/cm²)<18<15<12<10<8When you enquiry ,please tell us ...