grapple tong control valve

同义词释义

1)grapple tong control valve,抓钩夹钳控制阀2)clam,夹钳，抓斗3)clam control valve,抓斗控制阀4)hook control valve,吊钩控制阀5)grapple rotate control valve,抓斗翻转控制阀6)hook control spool,吊钩控制滑阀