1) Co-polymer coated aluminium foil (slitted) - aluminium foil with co-polymerised lamination in both sides 2) A) both sides of co-polymerised aluminium tape/foil must be smooth & light shinning B) purity of aluminium should be 99% C) both sides of the aluminium foil must be laminated with ethylene acrylaure either copolymer or acrylaure-copolymer D) the laminated must be evenly thick without any uncovered spots. Also the striking to the metal must be continuously of same amount. E) the peel strength of the copolymer film from the aluminium foil shall not be less That 6.5n per 25 mm width of the foil.
3) dimension: Thickness of uncovered aluminium foil:0.20 mm to 0.21 mm Thickness of copolymer (on each side):0.05 mm to 0.06 mm Overall thickness:0.30 mm to 0.32 mm Reel inside diameter:102 mm in aluminium cores or steel cores with 3 mm wall thickness Length per reel:1005/1025 meter in single length
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