Abstract: A metal bottle can comprises a mouth part having a curl portion at the end, a neck part having a straight part in parallel to the can axis, a taper-shaped shoulder part, a barrel part, and a bottom part. The metal bottle can is integrally formed from a primitive plate of the thickness (wall thickness T) of 0.48 mm to 0.30 mm by drawing-processed. The metal bottle can has the barrel part with the diameter A of 40 mm to 70 mm, the neck part with the diameter B of 20 mm to 35 mm, the straight portion of the neck part with the length S of 10 mm to 40 mm, the shoulder part with the angle ? of 40 degrees to 70 degrees, the mouth part with the wall thickness X of 0.46 mm to 0.33 mm, and straight portion of the neck part with the wall thickness Y of 0.43 mm to 0.30 mm.

Abstract: A metal bottle can comprises a mouth part having a curl portion at the end, a neck part having a straight part in parallel to the can axis, a taper-shaped shoulder part, a barrel part, and a bottom part. The metal bottle can is integrally formed from a primitive plate of the thickness (wall thickness T) of 0.48 mm to 0.30 mm by drawing-processed. The metal bottle can has the barrel part with the diameter A of 40 mm to 70 mm, the neck part with the diameter B of 20 mm to 35 mm, the straight portion of the neck part with the length S of 10 mm to 40 mm, the shoulder part with the angle a of 40 degrees to 70 degrees, the mouth part with the wall thickness X of 0.46 mm to 0.33 mm, and straight portion of the neck part with the wall thickness Y of 0.43 mm to 0.30 mm.

Abstract: An oral composition contains mutanase prepared from a culture which is obtained by cultivating a mutanase-producing microorganism belonging to the genus Bacillus having negative protease producibility. The oral composition is effective for suppressing dental plaque formation while the mutanase possesses commercially acceptable stability in the oral composition.