Nanjing Zhonglide Mechanical and Electrical Equipment Technology Co., Ltd. Is a private enterprise combines designing and processing machine (manufacturing). The major products are: Series Gearbox, engineering machinery, twin-screw extruder parts (including the cabinet, gear, shaft, oil seal, flange, etc. ) main distributing valves of the regulate governor. Most parts of gearbox are for export, main distributing valves control for hydroelectric facilities system. Our company has been through ISO 9000 Quality System Certification, we dedicated to providing customers with quality products and services.