A pen nib, the material for the K alloy, the nib has 18K alloy ( containing gold, 75% ) ( 14K alloys containing gold, 58.33% ) ( 12K alloys containing gold, 50% ) ( 10K alloys containing gold 41%), corresponding to the 18K pen, pen, 14K 12K and 10K fountain pen fountain pen.

Pen pen tip of the iridium grain original all use of platinum group metal, through multi-channel process from, wearability, corrosion resistance and writing lubrication function.

Two, pen nib made of stainless steel, such as pen golden is by metallizing process made pen tip head, the iridium grain has rare metals ( tungsten, cobalt, ruthenium ) made of gold, compared to using the iridium grain, the wear resistance, corrosion resistance and corresponding to drop.