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Our company Unite Industry Co., Ltd specializing in precision shaft manufacturing. We've imported high precision production equipment and test equipment from German, Japan and Korea. Our main products' O. D. Is from 5mm to 25mm, anyway, we can satisfy your requirements from simple optical axis to multi-step axle centers, to precise gear and to gear case components also including welding shaft. As the welding shaft, it weld two different material pefect and now apply to servo motor; This technic is lead in Domestic Industry.