supply of gasket set made of rubberized cork sheet suitable , supply of gasket set made of best quality rubberized cork sheet rc-70c conforming to is 4253 / part-2 / 2008with its latest amendment if any ) for use in repairing of 25 kvato 100 kva distribution transformers ) each gasket set consists of gasket washer as per following detail & as per sample. ( a ) gasket washer size dia od 110 mm, id 75 mm, thickness 6mm, - 03 nos. ( b ) gasket washer size dia od 50 mm, id 28mm, thickness 6 mm - 12 nos. ( c ) gasket washer size dia od 32 mm, id 12 mm, thickness6mm - 04 nos. total 19 nos. washer pieces in one set & as per sample and enclosed drg.. each set will be packed in environmental friendly poly bag. ( tolerance in size + / - 0.25 mm, negative tolerance in thickness is not allowed )