Changzhou Lingtan ultrasonic equipment Co., LTD was founded in 1990s, it is one of the earliest professional enterprises which engaged in the ultrasonic transducer and ultrasonic testing equipment development, production and service. The company is located in the south of the lower reaches of the Yangze River —Wujin National Hi-tech Industrial Zone, which is close to Changzhou international airport, Huning expressway and S38 expressway, so the traffic is very convenient. Three departments of the company are Marketing Department, Product R&D Department and Production Test Center. Professional and technical staff account for more than 30% of the number of employees. So our professional design & production team can provide a package solution for a variety of specifications and applications of the ultrasonic transducers. The products of our company are widely used in railway, shipbuilding, coal, air, chemical industry, boiler, pressure vessel, metallurgy and other industries, with stable product performance, by the welcome and trust of masses of users. It passed the ISO9001:2008 version international quality management system certification, and according to the ISO9001:2008 version international quality management system for management and operation. By this way, the product quality continuously improved , also meet the user’s requirements and expectations. In recent twenty years, the company is always adhere to the quality policy- "technology innovation, management innovation, quality innovation, product innovation, offering our customers the high technology content, high performance ratio, high reliability products and quality service" , and adherence to the business purposes-"professional innovation, the pursuit of quality, improving customer satisfaction". For these years, we committed to the development and production of ultrasonic transducer equipment, made outstanding contribution for the country’s ultrasound.