pressure balance spool

同义词释义

1)pressure balance spool,压力平衡滑阀2)pressure balance valve,压力平衡阀3)balance slide valve,平衡滑阀4)pressure-balanced valve,压力平衡的阀<液>5)pressure averaging valve housing,压力平衡阀外壳6)equilibrated valve,预启阀，压力平衡阀