Pumps such as plunger pumps are widely used in shipbuilding, oil mining, and carriers. In 2008, the ship's output reached 15,000 tons, and the number of heavy tons accounted for 21% of the world market. By 2015, they will become the world's first shipbuilding. In order to ensure the normal navigation or mooring of the ship, meet the needs of crew and passengers, each ship has a number of marine products that can play accordingly, the marine pump is one of the important auxiliary machines. According to incomplete statistics, in various ship-assisted mechanical equipment, the total number of marine pumps of different types and different purposes accounts for about 20% -30% of the total amount of ship machinery and equipment, and the price of marine pumps is in ship equipment costs. The specific gravity of the occupation is also relatively large. In total cost, the boat pump accounts for 4% -8% of the shipping cost of the shipping equipment. Under normal circumstances. The procurement of the marine pump for medium or more ships can reach more than 10 million yuan.

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