Approved: DNV,ABS,LR,KR,NK,RINA,BV. Best price and good quality,much experience in producding marine equipment Marine Free fall Liftboat Davit Launching Appliance or Free fall LiftboatTypeWoring load(KN)Capacity of Boat(P)Main Dimension(mm)BMD55F552864005400BMD70F704285006400BMD90F905098008500