supply of top seal n type roll size - 8 inch x 20 mtrs for securing hood of electric loco. as per following specification: i) visual tape free wrinkle & visual defect. ii) dimension: (a) width: 8 inch (b) length: 20 mtrs. (c) thickness: 0.18-0.30 mm. iv) tansile strength kg (25-30 minimum) (v) elongation (%) : 5 minimum (vi) adhesive to steel (g/2.5 cm): 3000 mini. vii) water permeability: not more than two drops after two hours. viii) weather resistance to pass 200 hrs as per saej 1900 in std xenon arc base should pass the test. ix) oil resistance should pass the test. x) alkali resistance should pass the test. xi) mvpt as per ind/me/790 (a) the moisture absorption should not be more than 200 g/m square/24 hrs at 40 degree c. make/brand - permacel, savvy, johnson & johnson or similar.