The fully automatic water tank blow molding machine can produce 300 liters to 3000 liters and can produce 1-10 layers of water tanks. With the technological progress and development of various industries, the demand for engineering parts, structural parts and equipment accessories will become more urgent. The development of special blow molding machine production lines for some special engineering blow molding parts and equipment matching blow molding parts will increase. The research and development and breakthrough of key technologies of plastic blow molding machines. The research and development of key technologies of plastic blow molding machines has been ongoing in the industry. Key technologies represented by flexible ring die and drift die control technology will achieve rapid technological breakthroughs in recent years. Fully automatic control technologies such as wall thickness control, servo hydraulic, servo electric control technology, electromagnetic ind…