http://www.rigid-box-machine.com/ discount Automatic Case Making Machine Company Profile Zhejiang Zhengrun Machinery Co., Ltd., established in 1997, is the first domestic brand to start the business of the business of packaging equipment production. The Company is mainly engaged in the R&D, design, production and sales of the rigid box machinery and case maker machine. It's rated as a National High-Tech Enterprise, National Intellectual Property Advantage Enterprise, Provincial enterprise R&D center, Wenzhou Civilized Unit, Pingyang County New Age Civilization Practice Enterprise Culture Demonstration Base. The company has