double lock cylinder 1) brass material 2) key : S normal key ... brass2.Hoodle : 5 or 6 hoodle3.key material : brass key or iron key4.Size: 40mm, 50mm, 60mm, 70mm ... , 80mm5.Spring material : stainless steel , brass , steel 6.Surface treatment : Brass polished, AB, AC, CP, SN, NB and ... way , computer key way9.Type : single cylinder, double cylinder, half cylinder, bathroom cylinder, oval cylinder 60mm ...