Envelope- Se 8. 1-Finished Envelope Size-305Mmx405Mm. 2-Kraft Paper 110 Gsm With Cloth Lining Kraft Paper In Brown Color Confirming To Is 1397/1990 Grade-1, 3-The Envelopes Should Be Manufactured From A Single Sheet Of Kraft Paper With Seams Of Folded Flaps Of Paper Adhered To The Outside. 4-The Envelope Bottom Of The Seam Should Be 25Mm 5-The Envelope Center Seam Should Be 14Mm 6-The Top Flap Should Be Minimum 50Mm At Center & Rounded At Both Sides. 7- Corner Of The Flaps & Seams Shoul