Tender For supply of sars -cov-2 rt-qpcr kits for wastewater for rsv,flu,sc2, 200v reactions , sars -cov-2 rt-qpcr kits for wastewater for flu a,flu b,sc2, 200v reactions , sars -cov-2 rt-qpcr kits for wastewater for n1,n2 or e 200 reactions , tween 20 , dna erase or dna removal reagent