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            Rotating disk centrifugal atomization is an important method for metal powders manufacturing. It was originally developed by the American Pratt&Whitney Aircraft Manufacturing Company. Due to its unique powder size, shape controllable, cleanliness and low cost has been attended. In recent years, people have combined it with spray deposition to form centrifugal spray deposition (CSD) for near-net-shape production of aviation parts.

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            国产乱理伦片A级在线观看,国产乱理伦片在线观看高清免费,日本乱理伦片在线观看BD