??Appearance:
The tungsten wire is regular black covered with graphite. After graphite removed it is metallic luster.
2?? Specifications:
10?a15w,25?a60w,100-200w,300-1000w.
purity quantity:99.95%
3?? Application:
For producing electric light source parts and electric vacuum components;
For producing heating elements and refractory parts in high temperature furnaces;
For producing heating elements used in vacuum metalizing or plating.
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