procurement of usm check meter , serviceportion , usm meter: inlet x outlet line size and rating:8” x 8” and 300# flow capacity design =0.19 - 0.28 mmscmd packaged skid shall consist of ultrasonic type flow transmitter with necessary instruments with interconnecting piping and associated valves, fittings & related accessories, pre wired skid edge junction box, plc based metering panel, flow computer, cable and cabling in accordance with attached p&id, datasheets, specifications etc., along with this requisition and including mandatory spares, commissioning spares, and supervision for erection, testing & commissioning.