Raktim Maitra

personal protective equipment shipping seamenship deck precautions precautions risk assesment assessment risk coswp safe bunkering practice bunkering ship proper lighting enclosed space entry ropework hand signals crane signals code of safe working practices arieal observation drone rolling pitching sway heaving sogging hogging static forces dynamic forces slamming pounding strains stressés legal ship mamanement cahrterer director finance hitches bends knots