- Elbow - Tee - Reducer - Cap - Lap joint       90˚ ELBOW(LONG) 90˚ ELBOWS(SHORT) 45˚ ELBOWS(LONG) 45˚ ELBOW(SHORT)     45˚ ELBOW(SHORT)     ▶ KS B 1541/3   JIS B 2312/3   ANSI B 16.9 Unit : mm