flexible poly vinyl chloride (pvc) flooring sheet in rolls of size; 1620 mm width x 14 meter long of 2 mm nominal thickness. conforming to rdso spec.no.rdso/2006/cg-12(rev.-1 of aug.2008) read to all amnd. with latest amnd. slip no.- 4 of august-2018 colour as per rdso approved sample code -nacflg-02.firm should supply suitable pvc welding electrodes 45 metre per roll.