To provide the rod guide who guides

摘要

PROBLEM TO BE SOLVED: To smoothly perform filling of gas in a short time.;SOLUTION: A tapered guide face 19b, in which a slope is downward from the outward to the inward, is formed on a bottom face of a seal housing portion 19 receiving an outer peripheral lip 8 in an oil seal 4.;COPYRIGHT: (C)2003,JPO