Where The Concentric Serration Is Insisted For Face Finish?

1.	Where The Concentric Serration Is Insisted For Face Finish?
Answer» Concentric serration are insisted for face finish where the FLUID being CARRIED has very low DENSITY and can find leakage PATH through CAVITY. Concentric serration are insisted for face finish where the fluid being carried has very low density and can find leakage path through cavity.

Answer»

Concentric serration are insisted for face finish where the FLUID being CARRIED has very low DENSITY and can find leakage PATH through CAVITY.

Concentric serration are insisted for face finish where the fluid being carried has very low density and can find leakage path through cavity.

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