... ; 4. TBI brand quality gurantee. TBI ball screw Ball screw is made of screw, nut and ball. it's function is to turn the ... 5005,5010,6310, the max length 6000mm, we sugguest customer accept 3000mm, it's easy packing, easy and safe for transport. Ball screw ... covering inner packing, in stock ready to delivery or ball screw set progress. Ball screw various specification stock in warehouse: Who we are ? ...