currency with emphasis on internal or external faces, smussi perimeter with possible blowout on the faces the same

摘要

the current coins are not suitable for an efficient, so modifications were made.1 points internal to them of any geometry, allowing the outer part to be higher by the socket.the second or smussi on concave or convex circumference, third blowout x reduction, x to facilitate stacking and x to a value by changing the geometry of the hole itself whatever it is.