supply of 03 types spare for complete bottom block assembly03 types spare for complete bottom block assembly,supply of complete bottom block assembly with lifting hook with safety latch along with fitm ent and commissioning by firm after dismantling and removal of existing old bottom block assembly and wi re rope. capacity : 05 ton details are attached as annexure- a [ warranty period: 30 months after the da te of delivery ] ] , supply of complete bottom block assembly with lifting hook with safety latch & balancing pul ley along with fitment and commissioning by firm after dismantling and removal of existing old bottom bloc k assembly, balancing pulleys and wire rope. capacity : 25 ton details are attached as annexure- b [ warr anty period: 30 months after the date of delivery ] ] , supply of complete bottom block assembly with lifting hook with safety latch & balancing pul ley along with fitment and commissioning by firm after dismantling and removal of existing old bottom bloc k assembly, balancing pulleys and wire rope. capacity : 30 ton details are attached as annexure- c [ warr anty period: 30 months after the date of delivery ] ] => limited