Shanghai Beiwen Valve Manufacturing Co., Ltd. was founded in 1972 as the predecessor of Shanghai Nanhui Orchard Valve Factory. At that time, it introduced A27W spring relief valve designed by the former Soviet Union and its brand was Fruit Valve Brand (Gf).In 2005, the company changed its name to Shanghai Beiwen Valve Manufacturing Co., Ltd. and started the certification work of the national special equipment manufacturing license, and won the national certification smoothly. In 2008, in order to expand the scale of operation, the enterprise relocated to Fengxian May 4th Highway and re-conducted the certification work. ....