Nibẹ ni o wa mẹta orisi ti ga-titẹ flange lilẹ oju: alapin lilẹ oju, o dara fun kekere titẹ, ti kii-majele ti alabọde igba; Concave ati convex lilẹ dada, o dara fun die-die ti o ga titẹ nija; Tenon ati ilẹ lilẹ dada, o dara fun flammable, bugbamu, media majele ...
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