propeller material:bronze,copper,stainless steel,cast steel size: ... RINA certificate 4.As Your Request and Draw for produceMarine outboard propeller Diameter: 0.5m-10m 18 months warrenty ABS,GL ... cargo vessels ,etc.The main targets when designing an FP propeller are:-Efficiency (related to speed)-Cavitation behaviour (related to ... fast containerships, tankers, bulk carriers and cruise liners. propeller