油缸头部销 head end pin

油缸头软管接头 head hose coupling

油缸头部压力 head cylinder pressure

油缸头部孔口 head end cylinder port

油缸头部腔室 head end chamber

油缸头部补偿阀 head end counterbalance valve

油缸头部缓冲器 head end snubber

油缸头部单向阀 head end check valve

油缸头部提升回路 head end lift circuit