| 摘要 |
<p>A single housing (2) is formed with selector valve ports (A, B, C, D, P, T1, T2) in a plurality of parallel rows each forming a selector valve, wherein the cylinder ports (D, C) in one set in one of the two adjacent rows communicate with the tank port (T2) and pump port (P) in the other row through communication passages (8, 9); thus, the selector valves are connected inside the housing (2) by the communication passages (8, 9), whereby pipe lines (6, 7) can be simplified.</p> |
