QINGDAO SUPERIOR INDUSTRIAL CO., LTD., which established in 1996 is one of leading company in China, specializing in producing and exporting Rigging Hardware, Pipe Fitting, Valve, Flange, Investment Casting Items, Stainless Steel Products and so on, which can meet various specifications. As an experienced exporter, our company is enjoying high prestige among customers all over the world for its reliable quality, favorable price, prompt delivery and considerate service.
“Quality is SUPERIOR INDUSTRIAL Lifeline”. We are quite serious about products’ quality; Quality control is an important part of daily operations. Each item must be strictly inspected by trained staff before delivery in warehouse, which is equipped with a set of “Universal Testing Machine”, a set of “Hardness Testing Instrument” and a unit of “Magnetic Particle Testing Facility”; these sophisticated equipments are cogent guarantee of products’ quality. All customers had been visiting us were deeply impressed with its