... lacquered or Unfininsed 2)Finger jointed 3)Surface: flat Staircase accessory- balsamo wooden stair treads is produced by our professional ... workers, we also can supply you different wood species of stair treadsl in different thickness, normally the ... treads we produce are: 1)Wood species can: oak, maple, beech, ash, rubber wood, teak, balsamo, cumaru, cherry and so ...