Abstract: A silicone rubber molded body (10) has an article contact surface (11). The article contact surface (11) has a coefficient of rolling resistance lowered by a fluorination treatment on the article contact surface (11).

Abstract: An engine device which can simplify a supply air cooling structure of an engine as well as simplifying a support structure of a first supercharger and a second supercharger. In an engine device in which the first supercharger and the second supercharger are arranged in series in an exhaust gas discharge channel of the engine, the first supercharger and the second supercharger are arranged in one side surface of the engine, the second supercharger is arranged so as to be close to the one side surface of the engine, and the first supercharger is arranged so as to be away from the one side surface of the engine.

Abstract: An engine device which can simplify a supply air cooling structure of an engine as well as simplifying a support structure of a first supercharger and a second supercharger. In an engine device in which the first supercharger and the second supercharger are arranged in series in an exhaust gas discharge channel of the engine, the first supercharger and the second supercharger are arranged in one side surface of the engine, the second supercharger is arranged so as to be close to the one side surface of the engine, and the first supercharger is arranged so as to be away from the one side surface of the engine.

Abstract: An electric-resistance-welded steel pipe with high strength consists essentially of 0.05 to 0.30 wt. % C, 0.6 to 2.0 wt. % Mn, 0.03 to 0.70 wt. % Si, and 0.01 to 0.05 wt. % Nb. The balance is Fe and inevitable impurities, the steel pipe having a martensitic phase ratio of 60 to 100% and having a tensile strength of 120 to 170 kgf/mm.sup.2.

Abstract: An electric-resistance-welded steel pipe with high strength. The pipe consists essentially of (a) 0.05 to 0.30 wt. % C, (b) 0.6 to 2.0 wt. % Mn, (c) 0.03 to 0.70 wt. % Si, (d) (i) 0.5 wt. % or less Mo by itself or (ii) 0.5 wt. % or less Mo with 1.2 wt. % or less Cr or (iii) 0.5 wt. % or less Mo with 0.1 wt. % or less V or (iv) 0.1 wt. % or less V and (e) the balance being Fe and inevitable impurities. The steel pipe has a martensitic phase in an amount of 60 to 100% and has a tensile strength of 120 to 170 kgf/mm.sup.2. The steel pipe is useful as an impact bar for the inside of an automobile door.