1 荧光渗透检查（水洗3级和4级灵敏度） Fluorescent penetrant inspection（Water washable level 3);

2 荧光渗透检查（后乳化4级灵敏度） Fluorescent penetrant inspection（Post-emulsifible level 4);

备注 荧光渗透检查为无损检测方法中应用比较广泛的方法。主要检测零件表面的缺陷。 FPI is a widely used of NDT method,  this process can detect the defects on the part surface

备注 磁粉探伤主要检测铁磁性材料的表面和近表面的缺陷    Magnetic particle testing used for the detection of surface or slightly subsurface discontinuities in ferromagnetic material