| 摘要 |
PROBLEM TO BE SOLVED: To reduce cost by omitting a separate base valve in a hydraulic buffer. SOLUTION: A bottom section 2d is formed integrally with a cylindrical section 2c by spinning and press working in an inner cylinder 2. The bottom section 2d is provided with a communication passage 2g on the base valve stretch side, a communication passage 2f on the base valve contraction side, a suction valve 15, and a disk valve 18 to constitute a base valve 23. COPYRIGHT: (C)2004,JPO
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