supply of procurement of set of heavy duty polyester. , set of heavy duty polyester webbing sling consisting of three items as per details given below. (1 ) heavy duty polyester sling lift both side loop of 10 ton capacity and of 5 meter length with manufacturer test certificate - qty. 04 nos. (2) heavy duty double legged polyester sling of capacity swl 10 ton, each leg of 05 t on capacity and of 2.5 meter length with master oval link at the top and eye hook at bottom with manufacturer test certificate. eye hook and oval ring to confirm to is2756:1969 - qty. 02 nos. (3) heavy duty polyester sling l ift both side loop of 3 ton capacity and of 4 meter length to is 15041/2001 with manufacturer test certificate. - qty. 04 nos. [ warranty period: 30 months after the date of delivery ] ]