... oxidation 4)dull polish processing manual venetian blinds : Manual Venetian blinds have different sizes of 16mm,25mm,35mm ... ; Its easy operation is suitable for indoor usage. namemanual venetian blinds Usehome,hotel,school,meeting roomTypeverticalColorblack,white ,cherry ... ,snow white ,oakPayment termT/TPictures of the blinds: setting drawing :Color swatch susncreen wooden window blinds for bed room