6 sets linear guide rail SBR20 - 400/700/700mm + SFU1605- 450/750/750mm ballscrew + BK12/BK12 + Nut housing + Coupler CNC parts 6 sets linear guide rail sbr20 400 700 700mm 3 sfu1605 450 750 750mm ballscrew 3 bk12 bk12 3 nut housing 3 coupler for cnc
{}