A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a（）.<br>A:flame stopper<br>B:flame screen<br>C:flame filter<br>D:flame restrictor

A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a（）.
A:flame stopper
B:flame screen
C:flame filter
D:flame restrictor

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