
| 
 No.  | 
Item | 
 Standard Specification  | 
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| 
 1  | 
Tungsten Granule | 
 W 99.5%, W 99.9%, W 99.95%  | 
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| 
 2  | 
Chemical Composition | 
 C 0.001% max, S 0.001% max  | 
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| 
 3  | 
Size | µm | 
 1.650-0.830  | 
 0.830-0.365  | 
 0.365-0.245  | 
 0.245-0.175  | 
| 
 mesh  | 
 -10~+20  | 
 -20~+40  | 
 -40~+60  | 
 -60~+80  | 
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| 
 4  | 
Packing | 
 1kg, 2kg in plastic bottle or Can, carton box or iron drum outside  | 
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