Profile: Aolong Radiative Instrument Co., Ltd. manufactures and exports NDT equipments. We are an ISO 9001:2000 certified company. Our products include standard portable, enhanced constant frequency, high frequency & high voltage, mobile and enhanced portable X-ray flaw detectors. Our model X-PCD2000 pipeline crawler is a kind of instrument for detecting the quality of welding line in long-distance pipelines. It adopts imported Siemens S7-200 PLC as a control center with strong anti-interference resistance, high integration, high capacity memory and simple programming operation, making the pipeline crawler getting all-around protection. The instrument is set with various protective measures, and the faults are clearly displayed through the display screen. Its high precision tube voltage adjustment makes the setting parameters unchanged with the reduction of energy capacity of battery. Our X-ray crystal orientation analyzer uses X-ray diffraction principle to accurately and quickly detect the cutting angle of natural/artificial mono-crystal. It is one of the indispensable instruments for precisely manufacturing crystal components. This product is widely used in crystal material study, machining and manufacturing line. Our products are widely used for non-destructive testing in industries such as spaceflight, shipbuilding, automobile, pressure container producing machinery, metallurgy, casting, petroleum pipeline, steel pipe, chemical and in electric power stations. We export our products to various countries worldwide.