Ball Screw SFU3205 1: Rolled and grounded both have, 2: Max length 6 meters 3: The grade is C5-C10, P5-P7, 4: Max diamater: 63mm We are specialized in bearing export, production, selling and after-service. Bearing products are sold very well in Asia, Africa, North and South America and Europe. The high quality product, the preferential benefit price, high quality service is our advantage. We warmly welcome friends at home and abroad to negotiate business!