column internals design, engineering, manufacturing, procurement of materials and bought out components, assembly at shop, testing at manufacturers works, inspection by tpia, packing and supply of column internals , naphtha stabilizerinternals hydraulic and mechanical design, column internals, downcomers and all items as per mechanical data sheets and project specifications attached with material requisition. , lean oil absorber internals hydraulic and mechanical design, column internals, downcomers and all items as per mechanical data sheets and project specifications attached with material requisition. , sponge oil absorber internals hydraulic and mechanical design, column internals, downcomers and all items as per mechanical data sheets and project specifications attached with material requisition. , diesel stripper internals hydraulic and mechanical design, column internals, downcomers and all items as per mechanical data sheets and project specifications attached with material requisition. , hp h2s absorber and wash column internals hydraulic and mechanical design, column internals, downcomers and all items as per mechanical data sheets and project specifications attached with material requisition. , fuel gas h2s absorber internals hydraulic and mechanical design, column internals, downcomers and all items as per mechanical data sheets and project specifications attached with material requisition. , flash gas h2s absorber internals hydraulic and mechanical design, column internals, downcomers and all items as per mechanical data sheets and project specifications attached with material requisition. , non condensable h2s absorber internals hydraulic and mechanical design, column internals, downcomers and all items as per mechanical data sheets and project specifications attached with material requisition. , deethanizer internals hydraulic and mechanical design, column internals, downcomers and all items as per mechanical data sheets and project specifications attached with material requisition. , vacuum tower internals hydraulic and mechanical design, column internals, downcomers and all items as per mechanical data sheets and project specifications attached with material requisition. , heavy oil stripper internals hydraulic and mechanical design, column internals, downcomers and all items as per mechanical data sheets and project specifications attached with material requisition. , product fractionator internals hydraulic and mechanical design, column internals, downcomers and all items as per mechanical data sheets and project specifications attached with material requisition. , short circulation drum internals hydraulic and mechanical design, drum internals and all items as per mechanical data sheets and project specifications attached with material requisition. , sour water degasser internals hydraulic and mechanical design, column internals, downcomers and all items as per mechanical data sheets and project specifications attached with material requisition. , unit rate forsupervision sevices of erection and commissioning / performance testing as per details mentioned in material requisition for quoted items as per enclosed instructions to vendor per diem charges upto 8 hrs on normal working days. ( bidders to quoteunit rate for diem charges ) , unit rate forsupervision sevices of erection and commissioning / performance testing as per details mentioned in material requisition for quoted items as per enclosed instructions to vendor overtime rate per hour ( beyond normal 8 hours on normal working days ) . ( bidders to quote over timerate per hour ) , unit rate forsupervision sevices of erection and commissioning / performance testing as per details mentioned in material requisition for quoted items as per enclosed instructions to vendor overtime rate per hour for work on weekly off days / holidays ( as applicable to refinery site ) . ( bidders to quote over timerate per hour )