... :PB/CP/NP Our factory mainly specilize in lock cylinder,the material are aluminium alloy ,copper ,iron and zinc alloy.Specificartion ... *10*33( mm) and 16.2*9.2*32.5 .The length of lock core is :54mm,60mm,63mm,68mm,70mm ... ,80mm,83mm,90mm,100mm.The package will accord to your require to make. 60mm 70mm brass lock cylinder with high quality