Available for the classification of ABS, BV, GL, NK, DNV, of anchor chain. product Bridle chain assembly for buoy Available for the classification of ABS, BV, GL, NK, DNV, of anchor chain.TECHNICAL SPECIFICATIONS GRADE:U2PROOF LOAD:MIN 55 TONNES COATING:BITUMUSTIC SOLUTIONINFORMATION: Bridle chains with swivel piece. the swivel allows the buoy to rotate with the wind and currents without kinking ...