1.MoSi2 heating element 2.type:U,W,UL,WL,Rod. 3 Dia(mm):3/6, ... high pure Molybdenum Disilicide.2.MoSi2 heating element 1) Main type :U, W ,UL, WL, Rod . Material grade :M1700,M1800,M1900 ... of the element lower end must put into the furnace chamber.When you enquiry ,please tell us .(1) Dia: D1/D2 ... : Lu,mm(4) Shank Spacing :A, mm 2013 XYX UL type best selling MoSi2 heating element