Abstract: A high-Cr, high-Ni, heat-resistant, austenitic cast steel comprises as main components C, Si, Mn, Cr, Ni, W and/or Mo, and Nb, the balance being substantially Fe and inevitable impurities, N being 0.01-0.5%, Al being 0.23% or less, and O being 0.07% or less by weight. Exhaust equipment members are produced by using this high-Cr, high-Ni, heat-resistant, austenitic cast steel.

Abstract: A high-Cr, high-Ni, heat-resistant, austenitic cast steel comprises as main components C, Si, Mn, Cr. Ni, W and/or Mo, and Nb, the balance being substantially Fe and inevitable impurities, N being 0.01-0.5%, Al being 0.23% or less, and O being 0.07% or less by weight. Exhaust equipment members are produced by using this high-Cr, high-Ni, heat-resistant, austenitic cast steel.

Abstract: A heat-resistant, austenitic spheroidal graphite cast iron has a composition comprising 1-4.5% by weight of Mo, and 0.001-0.5% by weight of Sn and/or Sb as (2Sn+Sb). It preferably has a composition comprising 1-3.5% of C, 1-6.5% of Si, 3% or less of Cr, 10-40% of Ni, 1-4.5% of Mo, 0.001-0.5% of Sn and/or Sb as (2Sn+Sb), and 0.1% or less of a graphite-spheroidizing element, on a weight basis.

Abstract: An exhaust equipment member having an exhaust gas path portion at least partially having a thickness of 5 mm or less is made of a heat-resistant, high-Cr, high-Ni, austenitic cast steel having weight ratios of Cr/Ni of 1.0-1.5 and Mn/S of 5 or more a composition by weight of 0.2-1.0% of C, 2% or less of Si, 2% or less of Mn, 0.04% or less of P, 0.05-0.25% of 5, 20-30% of Cr, and 16-30% of Ni, the balance being substantially Fe and inevitable impurities, with a weight loss by oxidation of 50 mg/cm2 or less when kept in the air at 10100 C. for 200 hours.

Abstract: There is disclosed an information processing system and method capable of coping with a wider range of subjects and intricate changes. In client server structure, time-varying database altering information received from external systems is pooled in servers and distributed to a number of distributed terminals or clients, using broadcasting communication.

Abstract: An injection ski comprises a pair of spaced composite elements and an expanded plastic interposed between the composite elements. The upper composite element is provided with convex portions formed thereon to prevent the composite element from sagging due to its own weight during moulding operation of the ski.

Abstract: A ski comprises an upper-surface constituting member provided with a projection which is constituted by an upper-surface member and a reinforcing member, and has the shape of a roof whose ridge is defined by the widthwise central portion of the ski. The upper-surface constituting member is formed on the upper part of the ski.

Abstract: A ski comprises a ski upper-surface constituting member provided with at least one cut portion of any desired shape; and an upper-surface projection member defined by at least one upper-surface member and a reinforcing member which are separately formed, and having the shape of a roof whose ridge is defined by the widthwise central portion thereof. The upper-surface projection member is fitted and secured into the cut portion, thereby to form a roof-shaped projection on the upper-surface constituting member.

Abstract: Method of manufacturing an injection-molded ski plate comprising steps of disposing a lower side member in a lower mold, disposing an upper side member in the lower mold, disposing an upper mold formed with a concaved portion corresponding to a roof-like shape with the widthwise central part of the ski plate and injecting a foaming synthetic resin into a hollow space between the lower and upper members and harding after foaming, whereby the upper member is molded following the roof-like concaved portion so that a convexed roof-like portion is formed on the upper member.

Abstract: A golf club head comprises a shell of carbon fiber reinforced plastic having a core embedded in the shell, the side and bottom of the shell are covered with a metal sole member including its integral side and sole portions, the core is positioned and retained in said shell by inserting a projection or projections on the sole member into the core and a pocket is provided in the sole member for containing weights to be used for weight adjustment of the head or balance adjustment.

Abstract: A golf club head comprises a shell of carbon fiber reinforced plastic, a polyulethane core embedded in the shell, a metal sole member having pointed pins extending through the shell into the core to position and retaining the core in the shell and an upwardly converging neck reinforcement embedded in the neck portion of the shell.

Abstract: A golf club head comprises a shell of carbon fiber reinforced plastic having a core and a reinforcement of carbon fiber fabric embedded in the shell, the side and bottom of the shell are covered with a metal sole member including its integral side and sole portions, the core is positioned and retained in said shell by inserting a projection or projections on the sole member into the core and a pocket is provided in the sole member for containing weights to be used for weight adjustment of the head or balance adjustment.