We keep in mind that for valves, quality is always the most important. In order to make sure that our customers receive good quality
products, we have established strict quality control systems. Now our factories are certified by ISO9001,API6D,CE, AZ,etc
successively. As castings/forgings are the key point for valves quality, all our subcontracted foundries/forging plants are also CE
certified and pre-audited to be approved by our own inspectors.

Nowadays, Wuyou Valve has over 30 quality control engineers and more than 200 skilled workers. All valves are produced as
per relevant international standards. We have labs for material chemical composition analysis and quality examination equipments,
such as RT, UT, MT, PT, Fire-safe test etc to guarantee all material tests and each valve should be pressure tested to be satisfactory
before delivery. Material test report and pressure test report as per EN 10204 3.1.b will be supplied with our valves.

Concerning quality guarantee, our usual guarantee period is 18 months from delivery date, we can guarantee that our valve will work
well in their life circle and we will be responsible for any valve we sold. Our aim is to produce "zero leakage" and "long reliable service
life" valves to minimum the "Total Costs".