Written by Misaka Youhei
What works in a background of doors?
Ordinarily, you can calmly open and close doors. The leading figure of the door is, you know, a hinge. In Japan, a top runner of the hinge field is Nishimura. They produce 65 percent of all domestic hinges. It is said that they examine their doors in the open-and-shut exam 200,000 times in order to preserve their quality.
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