Traditional Culture Encyclopedia - Hotel franchise - What is the fire door rating certificate of the hotel door?

What is the fire door rating certificate of the hotel door?

Refers to the certificate of quality and performance of fire door products. Hotel door fire door grade certificate refers to the certification certificate of fire door product quality and performance. The fire door certificate is usually issued by the national or industry standardization organization, which proves that the product has passed the relevant quality and performance tests and has certain fire prevention and safety performance.