Abstract: Disclosed are an information processing apparatus and an identifying method therefor that are used on a network. With preferential use of the identifier of a network card, the degree of demountability of that is the lowest, there is produced an identifier of the information processing apparatus. As a result of this, it is possible to minimize the changing of the identifier of the information processing apparatus.

Abstract: Disclosed are an information processing apparatus and an identifying method therefor that are used on a network. With preferential use of the identifier of a network card, the degree of demountability of that is the lowest, there is produced an identifier of the information processing apparatus. As a result of this, it is possible to minimize the changing of the identifier of the information processing apparatus.

Abstract: A multifold pipe made by multiple rolling up and turning of a copper coated steel sheet into a multifold pipe, characterized in that said steel sheet is a cold rolled sheet of a super soft austenitic stainless steel comprising by weight: up to 0.05% of C, up to 1.0% of Si, up to 5.0% of Mn, from 9.0% to 15.0% of Ni, from 15.0% to 20.0% of Cr, up to 0.04% of N, up to 5.0% of Cu, the balance being Fe and unavoidable impurities, wherein the alloying elements are further adjusted so that both the two relations (1) and (2) noted below are satisfied:K=20.5+13.0.times.C+0.99.times.Si-1.1.times.Mn-Ni-0.4.times.Cu +0.4.times.Cr+117.1.times.N.ltoreq.19.5 (1)H=27.1+60.9.times.C+0.26.times.Si-Ni-0.79.times.Cu+0.68 .times.Cr+52.6.times.N.ltoreq.29.0 (2)The multifold pipe according to the invention is excellent in fluid tightness of its fused part and in corrosion resistance.