Invitation to Bid - Sling set high Tenacity 100 Percent Polyester Slings; Specification of the material are given below: Sling set Polyester multi leg [2 Legged] sling assembly of SWL- 20 tons capacity. Each Leg made of Endless Round Sling of 15 tons capacity [Code: SR 15000]. One end of each leg will be fitted with a common 'O' Ring [Plus Minus 56 mm x 250 mm ID] of 20 tons capacity and other individual end of each leg will be remain free. Each Sling Leg will be coved with double Path anti-abrasive sleeve. Length of each Leg: 2.5 mtrs. [Excluding fittings] as per IS: 1504/2001. Brand: Simplex or similar. in West Bengal