Gearbox quotation About Changheng Founded in 1995, Zhejiang Changheng Machinery Group Co., Ltd is now a modern enterprise specialized in development, design, manufacture, sale and service for agricultural machinery transmission systems, including agricultural pto shaft (driveline), gearbox, and other accessories in complete series. We've developed our own line of forging, machining, assembly, plastic injection, etc. We have our own CE testing facilities like Torque, Frozen and UV tester. We also designed our own Square testbay with monitered gearboxes and PTO shafts running over 1000 hours. Contact Us 500+ Happy Client 200+ Products 3 Company Honor 40 Complate Projects Changheng keeps the entrepreneurial spirit of 鈥渒eep moving鈥?in mind to pursue every satisfaction of customers, create the market with morality and attract merchants with quality, thus opening up a bright future in the agricultural machinery industry.With our products sold to over 50 countries and regions in the world, Changheng enjoys high reputation and favorable comments for quality products, professional services, and integrity management. We will be working hard to contribute to a bright future of agricultural machinery industry.To be a trusted partner of the global agricultural machinery industry.Gearbox quotation website:http://www.zjchanghengcn.com/