I work as an importer and exporter of goods in Iran. and all our selling and buying through my agency in Dubai.we need some a4 paper with these describtion:paper weight is 80 grmthe size should be 210*297 mm2-In each box should be 5*500 sheets3-should have the best quality like April Fine Paper company which have the various of certificates such as SGS,Iso14001,...3-should be Copy Laser Paper4-should be Superb Opacity, high white ,Office paper and high performance too.