The pump industry of market belongs to a monopolistic competition market， namely the industry in different scale and the strength of the company is numberless as the sand， and product extremely differentiation In the whole within the industry， because from the manufacturing principle， the function， the pump and purposes， specification， etc can be divided into many kinds， whether the world or Chinese range， different according to different field development enterprises of distinctive pump， and get a highly profitable and each has the advantage of the Can say， compared with clothing， toys industries form of competition， pump industry has the very obvious "exclusive" sex， because pump enterprise is not primarily a single market in within their respective technical or according to win the market price advantage， but in can is divided into many different characteristics and levels of market segment of their respective keep in on the market "exclusive" forces， thus make the different pump in the different fields enterprise of pump demand market， specialization， several dozens of or more in this field of pump， and then， a research and development， production and sales Pump industry the present situation， and the huge demand for products at home and abroad and pump power and other factors， the pump industry profitability is 20 to 30 to () of the
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