Japanese family names are extremely varied: according to estimates, there are over 100,000 different surnames in use today in Japan. The three most common family names in Japan are SatÅ (ä½è¤), Suzuki (é´æ¨), and Takahashi (é«æ©).
Making the world better, one answer at a time. the purpose of wedging clay is to get the air bubles out. if you dont getthe air bubles out, when being fired, the air will try to escape your now hard pot, when it can't , it will explode your pot.
The purpose of nitriding is to enrich the surface layer of a work piece with nitrogen in order to increase the hardness in the surface. The process of nitriding takes advantage of the low solubility of nitrogen in the ferritic crystal structure to promote the precipitation of iron nitrides or alloy nitrides.