additional emergency bilge suction pipe
emergency bilge suction valve
emergency bilge drain piping system
emergency bilge drainage
emergency bilge pump
紧急舶水泵
应急污水泵
应急舱底水泵
应急舱氏水泵
应急舭水泵
emergency bilge pumping device
emergency suction apparatus
bilge suction non-return valve
bilge suction pipe
舱底水吸入管
舶水吸管
舱底水吸入管舱底水吸入管路
舱底水吸入管路
水吸入管
舱底吸水管
independent bilge suction
be in an emergency; report an emergency; ask for emergency help
suction chamber of double suction pump
120 Emergency Alarm System