91传媒 Technology has a professional valve research and development center and advanced production platform, and passed the ISO9001 quality management system certification, American Petroleum Institute API 6D/609 product certification, API 607/6FA fire certification, national special equipment pressure pipeline manufacturing license "TS (A1)" certification, European Community safety registration CE certification, product functional safety SIL 3 certification, environmental management system certification (GB/T24001-2016/ISO14001:2015), occupational health and safety management system certification (GB/T45001-2020/ISO45001:2018). It is the first-class supplier of Sinopec, PetroChina, CNOOC, Sinochem, Shenhua, coal chemical industry and other fields. It is a high-tech enterprise in Zhejiang Province and a national high-tech enterprise.
