UNITED STEEL MASTER MFG. CROP is a large steel producer in the Philippines. At present, their billets are imported from China, Russia, and Japan. They make billets into steel bars by furnace to meet the different needs of the Philippines market, and the daily output reaches 700 tons. Their main materials are Q105, Q235, Q275, and the steel bars produced are in diameter 8mm-21mm. The most important elements of the customer's materials are C, Si, Mn, P, S, etc, using our W5 optical emission spectrometer to give accuracy result of C, Si, Mn, P, S, etc, they love the stability and accuracy of our W5 OES, our W5 optical emission spectrometer provides strong supervision for the quality inspection of customers.