... ; 4. TBI brand quality gurantee. TBI ball screw Ball screw is made of screw, nut and ball. it's function is to turn the ... . We manufactur cold rolled ball screw in large stock, Specification include: 1204, 1604,1605,1610,2004,2005,2010,2505,2510,3205,3210 ... covering inner packing, in stock ready to delivery or ball screw set progress. Ball screw various specification stock in warehouse: Who we are ? ...