Tender For supply of teflon tape 0.003" thick 20mm.( 3/4") wide & 12 mtrs. long unsintered ptfe (poly tetra fluoro ethylene) type for thread sealing application to specn. no. is:14643/99 ( reaffirmed 2020 ) with amendment 1 equivalent to bs: 4375-1968. [ warranty period: 30 months after the date of delivery ]