... 4.ISO9001 Certificate Product name:Double open door lock cylinder1.Material : Brass,the key cylinder made by new material,not recycle ... company mainly product door key blanks,motorcycle key blanks,car key blanks,key cylinders,we have all kinds of keys and cylinders.If you want ... have factory Audited by Intertek: We have Double open door lock cylinder for 60MM,70MM,80MM... 1)The product samples:2 ...