Printing needles - comprise ceramic material at least for the shaft to give light weight with rigidity.

摘要

The printing needle is made of a ceramic material, at least for its shaft, using at least a part of zirconium for the ceramics, or the ceramic material is a mixt. of zirconium and alumina. USE/ADVANTAGE - The needles are used in a rapid striking action in printing. The needles are lightweight, and have a rigid structure.