Cards marked with the AISI and EURO lock when the right hole impact Kong Ru Figure 3 desired cards in the AISI. With cross hole card when in the EURO. (When card in the wrong position, will not be able to install hand. )
A card marked with AISI and EURO as shown in Figure 3 on the keyhole to punch card in AISI. There is a cross on the hole card in EURO. When the card is in the wrong position, the handle will not be installed.