Rein Wellhead Equipment (REIN WE) is an engineering and manufacturing company based in Suzhou, China. ​

REIN WE designs, fabricates, and supplies wide variety of equipment, such as wellhead assembly, Christmas tree, blowout preventers, choke manifolds, kill manifolds, wellhead desander, plug catchers, high-pressure API 6A valves, emergency shutdown valves and ESD system, high-pressure pipe & fittings. ​