... ,quick delivery 3.ISO9001 Linear motion slide rail support unit FK seriesSupport unit of ballscrew EF,EK,BK,BF,FK,FF...As ... machines, precision measurement equipment, robots etc.Features:1.Complete sliding unit system with high accuracy and can be moved smoothly without ... quality material and leading technology.3.Prompt delivery and good service.4.Models:EF,EK,BK,BF,FF...Specifications:Product pictures ...