Technical staff Put the pieces of Shaft A section of the injection molding operation. The problem was due to the work that produced the problems I bumped into a spiral ridge. Bring a specimen into the assembly to be compared with normal specimens. By a handful of pieces that finished inside the box and the Finish good spin off Shaft A composite view. For comparison After the comparison is done. The piece employs technicians who have not passed the verification back down box packing. Without informing the responsible authorities.