... white,black,bronze.color 4.diffrent size 1.window lock,crescent lock,aluminium lock2,material aluminium3.white,black,bronze.color4. ... china,we have own factory with die casting machine,press machine and injection molding machine ,so all the products we make ourselves ... moulding ourselves.we can supply you hook lock,crescent lock,moon shape window lock,window hinge,window handle,window roller,...please ...