Fischer Control Equipment International Limited is a subsidiary of Emerson Electric, a Fortune 500 company in the United States. In 1992, Emerson&Co. acquired Fisher&Co. and merged with another world leader in the process instrumentation field, Rosemount&Co., to establish Fisher&Rosemount&Co., in order to better meet users' requirements for completing application scope and corresponding process control needs. In April 2001, Fisher Rosemount was renamed Emerson Process Management and is a world leader in metallurgy, chemicals, oil and gas, pulp and paper, electricity, food and beverage, pharmaceuticals, and other industrial production, process, and distribution automation. Its brands include PlantWeb, Fisher, Micro Motion, Daniel, Rosemount, DeltaV, Ovation, AMS Equipment Management Portfolio, and CSI. Fischer Control Equipment International Limited was founded in 1880. At that time, in Marshalltown, Iowa, USA, our founder William Fisher invented the first pump regulator and planted Fisher's seeds in the small town. Since then, Fisher has achieved tremendous development through years of hard work and has become a recognized brand. Emerson purchased Fischer in 1992 and merged with another world leader in the process instrumentation field, Rosemount, to establish Fischer Rosemount to better meet our customers' requirements for a complete range of applications and process control. In April 2001, Fischer Rosemount was renamed Emerson Process Management. Fischer's business scope includes serving industries such as petroleum and gas, paper and pulp, refining, food and beverage, chemical and petrochemical, pharmaceuticals, electricity, metals and smelting, and semiconductors; The product and service scope includes: control valves and actuators, digital valve controllers, digital level controllers, AMS ValveLink software, field installed instruments, quick replacement parts services, regulators, etc.