supply, erection and commissioning of medium velocity water spray system with inspection, measurement, making of drawing, hydraulic calculation, nozzle selection and making bom list at conveyor 1a, 1b, 6a, 6b, 9a, 9b, u1, u2, u3 coal conveyor of btps , supply, erection & commissioning of medium velocity water spray system with inspection, measurement, making of drawing, hydraulic calculation, nozzle selection and making bom list at conveyor 1a/1b, 6a/6b, 9a/9b, u1, u2, u3 coal conveyor of btps , supply of material , making drawing: inspection, measurement, drawing (sld), hydraulic calculation, nozzle selection, making of bill of materials, fittings list for (mvws) system for conveyor 1a/1b, 6a/6b, 9a/9b, u1, u2, u3 coal conveyor of btps as per nfpa standard and tac guideline. , erection & commissioning : installation, testing, commissioning, civil work, hydrotest , gst, if any