外径24.0/25.6/27.3/29.0/30.6/32.3/34.0/35.6/37.3/39.0/45.0(mmφ)内径:19.0/20.6/22.3/24.0/25.6/25.0/27.3/29.0/30.6/32.3/34.0(mmφ)