Cui, Yaodong; Gu, Tianlong; Hu, Wei - In: Omega 37 (2009) 4, pp. 864-875
Circular pieces are often cut from stainless steel roll to make common commodities such as pots and cups. The related factories are often make-to-order ones. The stock rolls usually have the same width. Each working order requires pieces of the same size. Pieces of different sizes cannot appear...