山东正中门业有限公司. 
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23
2025.10
Six major issues that cannot be ignored in fireproof rolling shutter doors
2025-10-23Fireproof rolling shutter door is a type of fire prevention and insulation facility suitable for large openings in buildings, which plays a certain role in the design and installation technology of the product.
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22
2025.10
Standard specification for characteristics of inorganic fabric fireproof rolling shutter doors
2025-10-22Standard specification for characteristics of inorganic fabric fireproof rolling shutter doors - Made of inorganic fireproof fibers through special processing, it has fireproof, smoke proof, and heat insulation functions.
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21
2025.10
What is the function of a smoke barrier wall?
2025-10-21As a fire protection product, the main function of smoke barrier is to isolate smoke, insulate and prevent fire. So, how does it work when a fire strikes?
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17
2025.10
Inspection method for fireproof rolling shutter doors
2025-10-171. Visually inspect whether the door rail and door leaf are deformed, blocked, and whether the manual button is locked properly.2. Check if the electrical control box of the rolling shutter door has normal signals and if the box is damaged.
