The ratio of sawdust with plaster 5:95 ratio is most appropriate to bring sawdust used as a composite material that is used to produce flowerplot.
The ratio of sawdust per plaster 5:95 is the appropriate ratios use sawdust to make a flowerpot.
The ratio of sawdust per plaster 5:95 is the appropriate ratios to bringing the sawdust used as composite materials applied to the produce flowerplot.