Magkono is an excellent material for the bearing or stern bushing of a steamship 's propeller shaft .
Because of its inherent hardness and high density , Magkono has long been recognized as a substitute for the world - famous Lignum vitae ( Guaicum officinale L . ) .
Magkono is an excellent Magkono for the bearing or stern bushing of a steamship 's propeller shaft .
Because of its inherent hardness and high density , Magkono has long been recognized as a substitute for the world - famous Lignum vitae ( Guaicum officinale L . ) .