hiring services for fabrication and erection of separator oh off gas line from block 2and3 to the 1st stage of suction drum at block1 moc job at ompl , carbon steel piping ( non ibr ) :fabrication & erection ( bw ) , erection and welding of cs pipelines at ground level upto 4 . 5 mtrs elevation , fabrication of pipeline upto 12mm thickness , erection of pipeline upto 12mm thickness , erection and welding of cs pipelines above 4 . 5 mtrs elevation , fabrication of pipeline upto 12mm thickness , erection of pipeline upto 12mm thickness , scaffolding jobs , supply and erection of scaffoldings at different areas , pipe line ndt test , dye penetration test :- performance of dye penetrant test including supply of all necessary materials , equipment and labour for carrying out the work as per specification and directions of engineer-in-charge , radio graphy test :performance of radiographic inspection on piping of all types & thicknesses including providing or hiring of all necessary equipment and whatever else even though not expressly mentioned but required to perform the work as per specifications and instructions of engineer-in-charge . radiographs shall be submitted to the engineer-in-charge . ( repeat radiography due to defective radiograph on repaired joints due to contractors fault and for additional radiography necessitated due to poor performance of contractors welders shall be done at contractors cost ) note: unit for radiography quantity is nos of circumferential weld . , nb 2 inch sch std , nb 3 inch sch std , nb 4 inch sch std , nb 6 inch sch std , pipe supports fabrication and welding , corrosion pad cutting and welding , fabrication of cs structural steels for pipe supports like t post , pipe guide . , supply of structral steel for support fabrication - ( supply of cs structural steel for pipe support fabrication such as ismc 100/150 . isa 50 etc conforming to is 2062 gr . b as per requirement ) , valves erection and box up , transportation of all types of valves such as gate valves , globe valves , control valves , check valves from ware house , nrv nb 3 inch 300# , nrv nb 4 inch 300# , nrv nb 6 inch 300# , globe valve nb 2 inch , 150# , globe valve nb 2 inch , 300# , gate valve nb 3 inch , 150# , gate valve nb 3 inch , 300# , gate valve nb 4 inch , 300# , gate valve nb 6 inch , 300# , control valve nb 2 , 150# , control valve nb 2 , 300#