It appears from you link that you text might be about timber.

Hence finger-jointing/finger joint (FJ) might apply.
Finger-jointing is generally translated into German as Keil[ver]zinken oder Keil[ver]zinkung. Manchmal sieht man in deutschen Texten aber auch finger-jointing oder FJ</>.

finger jointing
Sources
das Keilverzinken (Holz) / finger jointing
ERNST - Wörterbuch der industriellen Technik
http://dict.leo.org/forum/viewUnsolvedquery.php?idThread=685...

DE:
Holzverbindung durch Keilzinken, wobei
- die Keilzinken nach DIN 68140 beschrieben sind und ein definiertes Verhältnis von Neigung und Länge haben.
EN:
Woodworking by finger jointing, with
- The finger joints according to DIN 68140 are described and have a defined ratio of slope and length.
http://www.google.com.na/patents/DE20014905U1?cl=en

FJ stands for finger jointed.

This is when they connect smaller pieces of wood together with joints that look like interlacing fingers (hence the name of finger jointed). This means that small sections can be joined to form a longer section. It is usually much cheaper than normal pieces of timber but each section can differ markedly in terms of colour / grain / look etc.
http://www.woodworkforums.com/f14/fj-pine-124061

Finger jointing is recognized as the most stable method of creating length joints between two solid wood or wooden composite components. It is used in order to produce very long wood components or to separate out branches and cracks which lower the strength. Using finger joints it is possible to joint short pieces of wood into one, in principle, infinitely long strand of wood.
http://www.weinig.com/en/solid-wood/processing-procedures/fi...