clad columns design, engineering, manufacturing, procurement of materials and bought out components, assembly at shop, testing at manufacturers works, inspection by tpia, packing, supply of the clad columns , design, engineering, manufacturing, procurement of materials and bought out components, assembly at shop, inspection including inspection by tpia, testing at manufacturers works, packing, supply of the heat exchangers , details and as specified in material requisition for the following tags , hp h2s absorber and wash column tag no-1p31-cc-0126 , fuel gas h2s absorber tag no-1p30-cc-0127 , flash gas h2s absorber tag no-1p30-cc-0128 , non condensable h2s absorber tag no-1p30-cc-0129 , deethanizer tag no-1p30-cc-1226 , vacuum tower tag no-1p30-cc-2126 , heavy oil stripper tag no-1p30-cc-2626 , product fractionator tag no-1p31-cc-2627 , supervision charges, ( no of days as per the above notes ) and other details as per the 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 )