Dandong hang lung technology co., LTD is a nondestructive testing industry, professional research, design and manufacturing, sales, maintenance and after-sales service as one of the high-tech enterprises, the company since its inception, has always been committed to product research and development of science and technology of nondestructive testing (NDT) methods, innovation, successfully developed a number of with independent property rights of core technology, with high quality products and perfect pre-sale, sale and after-sale service, I in the customers set a good corporate image. It has formed four series of more than 80 varieties. Sophisticated products manufacturing technology, stable performance, strong practicability, modelling beautiful generous. Products are widely used in thermal, pressure vessel, aviation, aerospace, electric power, petroleum, chemical, pipeline, military industry, nuclear industry, ship, automobile, metallurgy, steel structure, railway, high ?