发明申请
US20080050990A1 PROPELLER FOR WATERCRAFT AND OUTBOARD MOTOR 有权
用于水和电机的螺旋桨

PROPELLER FOR WATERCRAFT AND OUTBOARD MOTOR
摘要:
A propeller for watercraft having excellent abrasion resistance includes a propeller body having a blade and a hub portion, the propeller body being molded by casting an aluminum alloy, and an anodic oxide coating provided so as to cover a surface of the propeller body, the anodic oxide coating being obtained by performing a blast treatment for the surface of the propeller body and thereafter subjecting the surface to anodic oxidation.
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