Diamond drill bits are utilized to make holes through tough or delicate materials such as glass, stone and ceramic materials. They are strict requirements on the physicochemical property indicators of the graphite moulds.
With the improvement of people's consumption level, consumers' psychological shopping orientation has gradually changed from practicality to the pursuit of quality, brand and even comparison. Gifts also play an important role in the emotional transmission
As the carrier of packaging design, PP plastic box has the dual combination of commercial value and artistic value. The packaging design of PP plastic box has three elements: modeling, material and color.