Dalian Longzheng Polishing Machine Manufacturing Co., Ltd. Is a hi-tech enterprise extensively renowned for its professional manufacturing of polishing machine. We have 19 patents at state level and the intellectual property right on swirling flow and vibration series of Longzheng brand of polishing machines in 21 specifications have been elected Chinese Famous Excellent Product, Key Protected Brand, Reliable Brand of China and awarded the honorable title Famous Product of Dalian by the municipal government of Dalian.

It for years that we keep producing more than 600 kinds of components and parts for the Mitsubishi Heavy Industry of Japan, one of World Top 500. The headquarters of MHI has presented the tablet excellent supplier because of our great machining capacity and scientific production management, and our products are free of their inspection.

Our new product, JZJ01 Diode Pin Straightening Machine was developed by Dalian Longzheng Polishers Manufacture Co., Ltd. By more than 8 years of research. The Corp. Has the intellectual property right on it. Such machine is indeed high-performance automatic equipment for diode manufacturers. It can absolutely take the place of labor to work and has successfully settled the key trouble that has impeded the technical progress of diode industry for tens of years, and filled up the gap in the said field of the world.