When you change the molding conditions, during the draining each 30 shots at the end and examine Ensure that there is no 100% problem and to record the results.
When you have changed the molding conditions, beginning, middle, each 30 shot is sampling inspection at a final, it is confirmed that there is no total number problem, and records the results.
In the beginning, when changing the molding conditions, in the end, all the problems that they are not sure the sampling inspection to each shot, the result is recorded.