Wanli stationery group pen class sixth, Mr. Wu Hao
The quality of pens falls into three categories
One is the quality of the material (material, material grade),
Two is the quality after plating or painting (after finished quality),
Three is the deep processing (carving, engraving, drawing, marking, printing, glue and so on) to sum up is about the pen production category of quality.
To do a metal pen, pens need to be made up of layers of good quality.
Source: Wanli stationery net |