Abstract: The present invention provides a spinning method of a work piece in a non-circular cylindrical shape capable of eliminating a swollen part, without causing any creases or depressions on the formed face, by performing spinning to the swollen part produced in a region near the minor axis of the work piece in a non-circular cylindrical shape.

Abstract: The present invention aims at providing a drawing method of work piece in non-circular cylindrical shape capable of eliminating swollen part, without causing any creases or depression on the formed face, by performing drawing to the swollen part produced in a region near the minor axis of the work piece in non-circular cylindrical shape.

Abstract: The present invention is designed to perform a primary crushing operation including hooking and crushing of the top face part of waste through cooperation of a supporting projection and a first crushing roller. The first crushing roller also conveys the waste. A secondary crushing operation includes crushing of a bottom face part and the top face part of the waste W, while lifting the waste is performed by the first crushing roller and a second crushing roller. And, a tertiary crushing operation including crushing of the object material, that is to be crushed, into small pieces and discharging of these pieces separately from the materials that are unfit for crushing is performed by the second crushing roller and a third crushing roller.