Dalian Optical Instrument Co., Ltd. was established in North 2004, located in Dalian City, Liaoning. Our main business in the Northeast and North China, Dalian City, one of the leading supplier of instrumentation, all year round for petrochemical companies, steel companies, power companies provide a variety of instruments, such as pressure, temperature, flow, valves, and other on-site time sheet , recorders, regulators and other secondary instruments, special occasions (such as explosion-proof area, gas area) using the instrumentation. 
 We are also very familiar with the structures above the instrument. Honest management style over the years so I am in the iron and steel, power, petrochemical get a high reputation, not only the supply of good quality, reasonable price and great service specification does not allow customers to worry about for the sale. Technical service department has experienced a number of on-site technical staff, can operate independently, commissioning, maintenance instrumentation and automation equipment. My company is also active in more business, industries and more in-depth customer service. I firmly believe and adhere to quality and service is our survival.