Zhoushan Demaji Industrial Co., Ltd. is a professional manufacturer of large-scale production of screws and barrels in the country. The company has large production scale, excellent equipment, scientific technology, excellent production and strong technical strength. It not only serves as more than 100 large-scale plastic machinery production enterprises in China. It is equipped with supporting facilities and exports to Indonesia, Japan, South Korea, India, Russia, the Middle East, Africa, Taiwan and other countries and regions.

The company is based on the purpose of "saving energy for the country, driving progress for peers, creating profits for customers, providing opportunities for employees, creating benefits for enterprises, and creating harmonious development to create social prosperity together", with its original unique technical strength and perfect quality Ensure the system. After continuous efforts and research with Swedish engineers, the "Dermaggie" employees with independent intellectual property rights have improved the original PTA nickel alloy spray welding technology and developed two major qualities: ultra-long wear-resistant and ultra-high corrosion-resistant. Series screws, in foreign markets, our unique quality screws are the best in the market with their ultra-durable service life.

The company strictly passes the ISO9001;2000 quality management system. The products have been tested by domestic and foreign plastic enterprises for a long time and tested by national authoritative testing centers and gradually assessed by experts that their technical indicators meet and exceed national standards.

Under the new economy and new situation, the company provides customers with the purpose of "saving resources for the country, driving progress for peers, creating profits for customers, providing opportunities for employees, creating benefits for enterprises, and harmonious development to create social prosperity together". More perfect products and more satisfactory services.