Highly corrosive underwater mechanical organic matter extends from two edges of organic matter through at least one stream, organic hydrate and at least one wet surface, and at least one edge and part wet surface of organic matter. Nearby, there is at least one hard element in the resistant material, i.e. water flow machinery.

摘要

Hydraulic Machine Body through at least one water flow and has at least a Wet Surface that extends between two edges of the body.Where at least one of the edges and the surface being formed and reinforced by at least a Solid element of material with high Abrasive Resistance.