Lee Ng Pera

摘要

(57) Abstract Objective Being lightweight, not to rust, furthermore at the time of shaft pressing in kuratsuku that tries does not occur. Constitution The tree which forms the axial hole 3 where shaft 2 is pressed inPeripheral section 4 of fat make, in diameter direction thin thin 5 and diameter directionIn the impeller 1 which consists of with thick meat section 6 of the thick meat, the thick meatIt escapes to section 6 and it features that 8 is provided.