Jiujiang Zhongchuan Instrument Co., Ltd. was founded in 1959. With nearly 1,000 competent workers and hundreds of R&D members, we are a large manufacturer working for National Defense and specializing in producing and marketing the following products: 1) Navigation equipment, such as marine autopilots with compasses, follow-up pilots for boats or yachts and gyrocompasses. 2) Hydraulic or pneumatic control systems for petrochemical use, such as butterfly, slide, and plug valve actuators and ...