Since 2010 , LYV has more than 20 items Chinese national patents and the independent research and development intellectual property rights completely for different kinds and functions ball valves.
ISO 9001:2000, API 6D-1452, API 607 Fire- Safety, TS and other quality management system certification or international product certification; the workshop is stringent to a modern ERP system enterprise system management implementation. Our main products meet the mostly valves standards as API, ANSI, JIS, DIN, GB, BS and some customized design standards.