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Lecture hall fire detector for Kolkata: Premium Quality by W···
Lecture hall fire dete···
2026-08-25
Wanlin Fire by Wanlin Group - China's leading source manufacturer of lecture hall fire detector. EN54-5/7/11/25 certified, IN865-867 MHz, true dual optical smoke + A1R heat multi-sensor detection, OEM/ODM. Contact +8613261677119.