a hydrostatic release device on a life raft

automatic barge board construction cradle cutting date day deck device emergency field frame gas hydrostatic indicator industrial industry installation installed knot knotted life lifeline marine maritime metal nautical nylon ocean offshore oil oilfield oilrig onboard padeye petroleum platform raft release rig rigging rope safety sea secure self shackle ship shipping solas steel sticker submerge terengganu transport transportation validity vessel work