panic bar for fire exit door,fire exit door hardware,fire exit door and frame

Panto seuneu baja didamel tina baja galvanis, kalayan lapisan pelindung oksida sareng palapis anti-ultraviolét di luar. Bahan panto seuneu baja ieu sandwiched ku lapisan “papan perlite,” atawa bahan fireproof séjén, nu ogé bisa ngasingkeun seuneu jeung nyegah seuneu ti nyebarkeun.

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