detail of the paper:
Products : A4 Copy Paper 
Brands : DOUBLE A 
Size : 219mm X 297mm 
Subtance : 80 gsm 
Brightness : 94-96%, 98-100%, 102-104% 
Wraping : Art Paper 85/90 gsm 
Packing : 500 Sheets/ream, 5 Reams/Box 
Total in 20fcl : 7800 Reams