... manual in English 5.easy operation Our company supply high quality MFD800C Ultrasonic Flaw Detector to our guests all over ... cracks, voids, disbands, and similar discontinuities in welds, forgings, billets, axles, shafts, tanks and pressure vessels, turbines, and structural ... capable of being satisfied by a portable instrument. The quality, portability, durability, and dependability that you have come ...