continue to improve, to ensure product quality in line with market and customer standard requirements. Our company has a quality assurance system have been established for Couplings, Air Pipe Fittings , Double Male Air Hose Connector , Bsp Pipe Fittings ,Black Pipe Union Fitting . Excellent quality, competitive prices, prompt delivery and dependable service are guaranteed Kindly let us know your quantity requirement under each size category so that we can inform you accordingly. The product will supply to all over the world, such as Europe, America, Australia,United Kingdom , Portugal ,Ecuador , Amsterdam .We always insist on the management tenet of "Quality is First, Technology is Basis, Honesty and Innovation".We are able to develop new products continuously to a higher level to satisfy different needs of customers.