3 ms·
That sign isn't quite famous enough for me to have heard about it. What does it mean?
by jmmcd 9y ago
That sign isn't quite famous enough for me to have heard about it. What does it mean?
- gumby 9y agoIt qualified you properly: you are apparently not in their customer demographic! If you simply type "stop casting porosity sign" to a search engine you will find an enormous discussion by people who did and did not understand it. It was quite famous for decades.