Determine the hardness measurement results were seen in open space during the nerve-racking part was conducted evaluation tests, but if and when it piles up and no impact to the product.
Although evaluation test was carried out, to determine that there is no impact on the product showed no difference in hardness measurement result in the case superimposed with the case of a space when you racking parts.
Evaluation test was conducted, racking parts in the case when the open space was no difference in hardness measurement result and the effect on the product.