Fluorescent penetrant detection technology is one of the main methods of non-destructive testing. and very fine cracks on the metal surface can be easily observed.

Casting test is an essential method to find out flaws, and ensure the product quality. Today，there are many methods NDT for casting, the most commonly used is magnetic powder inspection, flurescent penetrant inspection, ultrasonic test, radiographic inspection,etc

Casting test is an essential method to find out flaws, and ensure the product quality. Today，there are many methods NDT for casting, the most commonly used is magnetic powder inspection, flurescent penetrant inspection, ultrasonic test, radiographic inspection,etc.