Zhejiang Guangming Plastics Mechinery Co. Ltd. is the largest enterprise which specializes in manufacturing conical twin-screw and barrel in China. The company has over 14 years experience in design and manufacture of high quality Guangyou series conical twin-screw and barrel. The annual output is around 3000 sets conical twin-screws and barrels. Our products have been exported to over 20 countries such as U.S.A., Europe, Russia, East and South Asia which are developed areas and countries of plastics industry in the world, also we are the largest supplier of conical twin-screw and barrel in China. We have equipped advanced technology and equipment for processing, test, as well as extended experience for design and high-level management, passed ISO9001 and 2000 certified by the quality management system in 2001. We can supply first-class nitrided, chrome-plating, bimetallic and surface spraying hard metal treatment conical twin-screws and barrels. At the same time, our company is able to take mapping, design for clients and make products as per customer's drawing excellently and so on. Since recent years, the company has been named as an ADVANCED COLLECTIVITY ENTERPRISE, a LEADER BUSINESS ENTERPRISE, a TECHNOLOGICAL TRANSFORMATION WINNING ENTERPRISE, a UNIT OF HONORING CONTRACT AND KEEPING CREDIT, a CONSUMER TRUSTWORTHY UNIT, a CREDIBLE ENTERPRISE, a CIVILIZED UNIT, a BRILLIANCE STAR by Zhoushan City?;Industry & Commercial Bureau and an AAA CREDIT ENTERPRISE named by Zhejiang Province Countryside Credit Corporation Society. The Quality Test Center of Screw and barrel in Zhejiang Province has named it as one of the pursued enterprises for many years.