... ,powder coating,wood colour,brushed, polishing 2.AAMA,DIN aluminium sliding door rollers A. Alloy: 6063/6061/6005/6060 T5/T6 ... Cutting, milling, drilling, punching, CNC machiningD.Advantage:Precious machining and cutting : length tolerance can be 0.5mm, hole tolerance can ... the quality and lead time.Reducing your stock maximum by pre-machining in China.Any OEM is welcome. aluminium sliding door rollers