It is designed for professionals of stainless steel industry with lists of ASTM stainless steel grades printed in the front. User can check corresponding elements of a certain grade by switching movable card inserted in the middle. A table of applicable steel grades in other countries, other than America, is designed on the reverse. A blank (90*55mm) is remained at the lower part of the front side. User can stick his/her company’s advertisement by applying adhesive glue. The instant checking card can be presented to customers as a promotion gift.
The card is novel, convenient and practical. It is a good tool for routine work.
Note: This product has been patented. Any form of copying is prohibited.