April 7, 2020That dozens of colors may it be, a crayon is a drawing pen made by mixing paint into wax.Unable to penetrate, crayons dye onto the picture by adhesion force. Therefore, they are suitable neither for s...view
March 27, 2019Crayons are pens made by mixing pigments in wax. They can be painted in dozens of colors. Crayons have no permeability, they are fixed on the screen by adhesion. They are not suitable for overly smoot...view
April 7, 20201. The necessity of automatic productionFor a long time, a company in the industry felt a sense of crisis from the stationery box stamping workshop. The traditional production process of the tinplate ...view
September 9, 20201. The petroleum refineries transport powder or liquid synthetic rubber to eraser factories. If the natural rubber is needed, a whole solid piece of rubber will be provided, so the workers must shatte...view
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