Tender For quotations for 1) coefficient of friction 2) melt flow index & 3) heat sealer for dpse - research grade co-efficient of friction tester with option of hot bed and vacuum bed capable of measuring both static and dynamic friction with normal force , automatic heat sealer for determining the heat sealability of flexible pouches and films. , automatic heat sealer for determining the heat sealability of flexible pouches and films , automatic melt flow index tester for determining the melt flow rate and melt volume rate.