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SIFT MACHINERY CO.LTD is a professional manufacturer engaged in the research and development and production of slewing bearing including single roll ball type, cross roller type, double row ball type, three rows of roller type,ball-and-roller type and all kind of Non-standard slewing bearings.Our company has a group of technical designers with senior titles, adhering to advanced manufacturing technology and production standards, and has an industry leading level in the research and development of various series of slewing bearings,special and non-standard slewing bearings  More ….

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