Top Seal N Type Roll As Per Size 4X20 Meters Suitable For Sealing Of Various Ht Equipment From Dust And Water, Thickness 0.4 Mm (+X-1-) 0.08 Mm, Tensile Strength 30 Kgs (Minimum 25 Mm Width Adhesive On Steel 3000 Gm (Minimum) 25 Mm With Manufacturer'S Test Certificate. [ Warranty Period: 30 Months After The Date Of Delivery ] ]