... the national standard GB3721-83 "magnetic powder flaw detection machine.2,This equipment should meet all the magnetic particle inspection technical ... Design requirements2,Main mechanical design requirements2.1 Mechanical main body frame is made of high quality steel, and it is tough ... 1,Sensitivity:Clear indications on test piece Model A #2.6.2,Dc sensitivity JB/T6066 according to regulations,adopts B ...