KOFLOW valve group was established in 1987, is a large scaled valve enterprise with integrated R&D, manufacturing, and marketing. After 20 years development, now KOFLOW valve group has three production bases and 5 subsidiaries. The annual output value near to 500 million in the year of 2008, tax revenue reach 20 million, covers an area of 78000 square meters, construction area of 5200 square meters. KOFLOW valve group has 582 stuff, of which 115 are professional technicians, with 8 senior engineers and 32 intermediate engineers. KOFLOW valve group consists of its own foundry, machining workshops, and welding heat treatment, assembly & test, laboratory for physical &chemical analysis , and is well equipped with advanced processing and test machines more than 300 sets, such as CNC machining centers, plasma spraying welding machines, large-sized spherical machines, ultra-high frequency vacuum heat treatment equipments, physical &chemical analysis equipments, NDE equipments , automatic painting line ,etc.