CAISHEN WINS BACKGROUND Specialising in; ultrasonic welding problems, ultrasonic welding of aluminium, ultrasonic crack detection for cast iron, ultrasonic pipe inspection, pipe flaw detector, time of flight mri, ultrasonic non destruction testing, pe pipe inspection welds, eddy currents crack detection, pe pipe inspection, magnetic pipe inspection pig, sset pipe inspection, non destruction testing ultrasonic test, cd crack detection