pvc card bags: 1>Used for all kinds of school card,work card,ID card and so on. 2>Simple and strong. 3>Any color ... manufacturing all kinds of bags,including packing bag, gift bags, candy bags, tool bags,shopping bags, office bags and so on.Our products are ... conveniently3>Can hold on many kinds of card,such as student card,work card,bus card and so on All kinds of pvc card bags