... heating element 2.type:U,W,UL,WL,Rod. 3 Dia(mm):3/6,4/9,6/12,9/18, ... heating element 1) Main type :U, W ,UL, WL, Rod . Material grade :M1700,M1800,M1900.2) Standard dimension ... (mm):3/6,4/9,6/12,7/14,9/18, ... 12/24. 3.It can be widely used in such applications as ... D2 ,mm/mm(2) Hot zone length :Le ,mm(3)Code Zone length : Lu,mm(4) Shank Spacing :A ...