These cards are a little different to the credit-card-style cards we might expect, instead they’re a narrow strip with a magnetic stripe down their centre. The unusual feature can be found at ...

Those big screwheads in the threshold of a newer entry door aren’t just decorative; they raise or lower a narrow strip set in ...

If the owners don’t want corrective grinding in their defined traffic aisles, then the narrow strip construction method is best. Since the inception of the term “Superflat” or “F-min 100 ...