Abstract: A dip-type extraction bag having a bag main body in a planar shape, being formed of a water-permeable filter sheet and filled with an extraction material, wherein the extraction efficiency is improved by providing the body with a specific gripping portion formed from a thin plate-like material and regulating the characteristics of the sheet. The extraction bag includes a bag main body, a thin plate-like member provided on an outer surface thereof, and an extraction material sealed in the bag main body, which is subjected to extraction. The bag main body is a flat bag that has two facing surfaces. The thin plate-like member has a gripping portion that protrudes or is able to protrude from an upper side or the outer surface of the bag main body. The bending resistance (41.5° cantilever method in JIS L 1913:2010 (ISO method)) of the water-permeable filter sheet is 0.09 to 6.0 mN·cm.

Abstract: A metal gasket (10) installed between a cylinder head and a cylinder block comprises at least one metal substrate (11) coated with a sealant (19) on its outer surface, and including a full bead (13) for cylinder bore hole sealing and a half bead (16) for liquid hole sealing. The half bead (16) includes: an inclined plate portion (16b) connected to a flat substrate body (11a) of the metal substrate (11) through a first bend portion (16a) and inclined with respect to the substrate body (11a); and an edge plate portion (16d) connected to the inclined plate portion (16b) through a second bend portion (16c) and inclined with respect to the inclined plate portion (16b). A radius at a convex surface of the first bend portion (16a) and a radius at a concave surface of the second bend portion (16c) are in a range of 2.0 mm to 3.5 mm.

Abstract: A metal gasket (10) installed between a cylinder head and a cylinder block comprises at least one metal substrate (11) coated with a sealant (19) on its outer surface, and including a full bead (13) for cylinder bore hole sealing and a half bead (16) for liquid hole sealing. The half bead (16) includes: an inclined plate portion (16b) connected to a flat substrate body (11a) of the metal substrate (11) through a first bend portion (16a) and inclined with respect to the substrate body (11a); and an edge plate portion (16d) connected to the inclined plate portion (16b) through a second bend portion (16c) and inclined with respect to the inclined plate portion (16b). A radius at a convex surface of the first bend portion (16a) and a radius at a concave surface of the second bend portion (16c) are in a range of 2.0 mm to 3.5 mm.