VBS is specialized in the inspection and quality control of industrial valves and related products. Having decades of experience in valve industry, we have the knowledge about the whole process of valve manufacturing, including design, foundry, machining, examination, assembly, testing, marking, painting, package, and so on. Besides, we are familiar with relevant international standards such as ASME, API, EN, DIN, BS, MSS, ISO, etc. We can identify if the valves are furnished exactly as per your order and relevant standards. Our service scope includes process inspection, final inspection and pre-shipment inspection. Most industrial valves are covered in our inspection range, such as gate, globe, check(swing, piston ), ball, plug, butterfly, orbit ball, dual seal plug, forged steel valves and so on. We keep â??quality first, keep improving and customer satisfactionâ?? as our policy; we would be always happy to provide quality service to our customers.