Founded in 1875, LOCKE, Germany, is one of the few few companies in the world that has perfect material R & D, product development, product design, product production, processing and testing, and after-sales service capabilities. It is a famous pump and valve manufacturer in the world. LOCKE currently has 3 valve factory in Germany, located in the headquarters of Frankenthal, Per Gneezy and Lu three, a total of more than 500 employees for the valve work of the Department, including 139 senior engineers and technicians, 43 management personnel, customer service service staff of 25 people, the annual output value of 65 million euros, has the ability to produce and more than 300 thousand sets of various types of assembly, a variety of standard products and special product design class.

LOCKE has over 130 years experience in valve design, manufacture and inspection. It strictly follows the ANSIB16.34 standard and MSS-SP-61 standard, and quality management and guarantee follow the ISO9001 certification in Rhine, Germany. In the company's many years of history, LOCKE has successfully developed many low nickel alloy steels and high temperature resistant and high pressure resistant materials. These materials are widely used in the manufacture of pumps and valves. Through long term engineering and use experience, the product of LOCKE has been proved to be completely reliable and durable.

Since its entry into the Chinese market in 80s, LOCKE valve has been widely used in more than 100 domestic power plants, including 300MW units, 600MW and 1000MW units, with its long and rich operation experience and complete after-sales service. Especially in Shanghai Waigaoqiao Power Plant, Yangshupu power plant, Tianjin Yangliuqing power plant, the blue power plant, Huanghua power plant and other conventional thermal power plant and nuclear power plants with large pressure Bay, Qinshan nuclear power station and other series of large-scale nuclear power generating units of high temperature and high pressure on the key position of operation has stable and reliable quality.