bids are invited for providing and fixing polycarbonate sheet for walk way - supply, fabrication and fixing at all levels 6mm thick approved make corrugated translucentpoly carbonate sheets of approved colour including fixing using gi hooks & bolts, clamps,bitumen washers, etc complete as advised by eic. make palram india or equivalent. , providing and fixing gi tubes - supply, fabrication and fixing galvanised tubes.all structural steel used shall conform to is-2062 & is-808 and of sail/tisco/iisco/ jindal/ essar/ vizag steel or equivalent make with prior approval from bpcl only.the structure may be pre-fabricated with bolting arrangements bymaking necessary holes. min. hot works will be allowed at site. it is vendors responsibility to verify the actual measurements at site before erection. , providing and fixing 37.5 mm dia pipe - supply, fabrication and erection of 1.5 dia cs sch 80 pipe.job involves painting with primer and two coats as per bpcl standards. scope of work also includes reconcilation of bpcl supplied piping materials and transportation of surplus free issue materials to owners storage yard within the plant premises. , providing and laying pcc - pcc plin 1:2:4 cs providing and laying plain cement concrete for all depths below and upto plinth level in foundations,drains,fillings, non-suspended floors,pavements & ramps or any other works etc.including the cost ofposition cement concrete of specified grade including the cost ofcentring and shuttering,tamping, ramming, vibrating,curing, in anyshape,position,thickness and finishing the top surface rough or smooth,etc. all complete as per directions ofengineer-in-charge. - all work upto plinth level , supplying and laying flooring tiles - demolishing/ dismantling of existing shed, support pipes etc. including taking all necessary safety precautions like scaffolding / cordoning etc.the scrap generated shall be transported to scrap yard as advised by eic. , painting of wall - brick tiling 40 mm, providing