... 4.manual in English 5.easy operation Our company supply high quality MFD800C Ultrasonic Flaw Detector to our guests all over the ... .The instrument can be widely used in locating and sizing hidden cracks, voids, disbands, and similar discontinuities in welds, forgings, ... are capable of being satisfied by a portable instrument. The quality, portability, durability, and dependability that you have come to ...