From the comparison of the effect of the variable after the pump to improve the effect of the variable before the update. Found that before the update stage of fish plates of RH process pumps as 16.25% thinking and the thought of fish plates of PH 2.4% which, when researchers have made to improve the pump by a mold to make a new Cut, making it possible to Wire the pump plate, is closest to the pich pich stage more standards. This causes less scrap is the RH and PH plates plates scrap is charged as 0% or no waste at all. From the sampling LOT 10
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