Recently,We had done the Nondestructive inspection penetrant test(PT) for high chrome alloy casting according to customer requirements,Steps are as follows：
1. Clean the processed surface
2. Spuit die rooi penetrant
3. Maak die rooi penetrant skoon
4. Spuit die wit ontwikkelaar, die wit ontwikkelaar lyk nie rooi nie, so daar is geen defek vir hierdie gietstuk nie.
