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Jinis lawang geni utamane dipérang dadi lawang geni kayu lan lawang geni baja. Padha dipérang dadi telung gelar: Grade A, Grade B lan Grade C. Telu gelar utamané dawa wektu toleransi geni. Kelas A lawang tahan geni, karo toleransi geni saka 1.2; Kelas B lawang tahan geni, kanthi daya tahan geni 0.9; Pintu kelas C tahan api, kanthi ketahanan geni 0.6.

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