Bisa ga nau'i na sealing aka gyara, ƙofar bawuloli ne sau da yawa kasu kashi da dama daban-daban iri, kamar: wedge gate bawul, a layi daya gate bawul, a layi daya biyu kofa bawul, wedge biyu kofa gate, da dai sauransu The fiye amfani siffofin ne wedge gate bawuloli da dai sauransu. layi daya kofa bawuloli.1. Bakin sanda ya auri...
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