handling at site stores / storage yard, transporting to site, inspection, preassembly, erection, alignment, welding, ndt, fixing of hangers & supports, chemical cleaning / pickling, oil flushing, water flushing, hydro testing & steam blowing, surface finish, supply & application of primer & finish paints/ anti corrosive / wrapping and coating as applicable including labelling & flow direction on the piping / over insulation & hangers and supports, pre-commissioning, commissioning, trial operation & handing over to customer for, acw,ecw ,ecw station piping, rack piping andmisc. lp piping, acwpiping and its associated items /systems, hangers and supports, valves of unit#1,unit#2 & unit#3 at pvunl project patratu,district-ramgarh state- jharkhand