Whereasintheinitialyear,rubberdippedcanvaswasusedtoformstrengtheninglayerformarineairbags,itsusewasalsolimitedtosmallandflatbottomshipsonlyandfabricatedlaunchingslope.Howeverlatesttechnicalprogresshasupgradeditsmanifolduseduringemergencies.Marineairbagshiplaunchingcansavestime,investmentandland...