... " , 3" , 4" 3)Competitive price&prompt delivery Product Description Item: mechanical bushing Offer machining parts, precision parts, CNC machining parts, CNC ... strict tolerance, can reach 0.002mm. 2. Equipments: Normal lathe, Automatic lathes, CNC lathe, CNC center machine, milling, drilling, grinding machines ... stationery, furniture, machinery, sanitary etc. 5. OEM order is welcome mechanical bushing