MoSi2 Heating Elements
材料等级material grade:1700,1800
直径diameter:D1/D2,mm/mm
热端长度：Hot zone length:Le,mm
冷端长度：Cold end length:Lu,mm
间距Shank spacing:A,mm
例如：examples:
U型shape,材料等级material grade 1800,
D1=3mm,D2=6mm,Le=140mm,
LU=125mm,A=25mm
表示为specify as :
songshan super ms18,u型shape,3/6×140×125×25
W型Shape ,材料等级1700, D1=6mm,D2=12mm,
Le=300mm,Lu=250mm,A=50m
表示为specify as :
Songshan super MS17,W型Shape 6/12×300×250×50