supply of heavy duty four leg wire rope slingheavy duty four leg wire rope sling,heavy duty four leg wire rope sling with main ring at one end hook at the other ends, (mechanically double spliced) as per fig-6 of is: 2762-2009. wire rope make usha martin or any other bis approved. wire r ope as per is 2266-2002 grade 1770 wire rope dia -20 mm with thumble effective length-2700 mm, flexible wire r ope with fibre core 6x19 (12x6.1) minimum breaking force of each rope-218 kn. ring as per is:4369-1967. main ring id -200 mm ,od :290 mm. hook-mild steel trapezoidal section eye hook as per is: 2758-1969.each hoo k capacity-3.2 ton.(annexure- a attached). [ warranty period: 30 months after the date of delivery ]