... to center):12.5, 15,25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mmetc ... :A) China: YB/T4001-1998B) USA: ANSI/NAAMM (MBG531-88)C) UK: BS4592-1987D) Australia: AS1657-1985E) Japan: JJS.Item No ... ×332×340×320×525×5130100G203/30/100G253/30/100G323/30/100G403/30/100G205/30/100G255/30/10050G203/30/50G253/30/50G323/30/50G403/30/50G205/30/50G255/30/50240100G203/40/100G253/40 ...