... ,80mm (4) type : double cylinder lock 1. material : solid brass 2. pin : 5 pins or 6 pins3. key : brass keys, iron keys ... .8 mm 6. Surface treatment : Chrome plated,Brass polished,AB,AC,SN,NB7. Packing : white box,colour box,single blister card ... requirementcylinder typeDouble cylinder, single cylinder, half cylinder Finished PB, AB, AC, CP, SN, NBKey TypeS normal key, computer key Material brass ...