ndt ndt 1 Light,reliable and acurate 2 Long life and low failure rate 3 Forced fan air cooling 4 No wrong execute ndt ndt Characteristics:(1) Small volume, Light Weight, easy to take and simplicity of operation (2) Safe and reliable generator adopts design of SF6 gaseous insulator, grounded-anode, and fan forced cooling . (3) Controller adopts design of hardware with a wide operative range, ...