STRUCTURE WITH TABULAR PROTECTOR OR L-SHAPED PROTECTOR

摘要

PROBLEM TO BE SOLVED: To provide a highly inexpensive protector keeping abrasion prevention effect for a long term.SOLUTION: In a structure through which fluid including particles passes, an inner wall of the structure is provided with an inclined tabular member, and an inclination face of the tabular member arranged with a backward portion positioned lower is provided to be directed to the upstream of the fluid.