Linda Boss Steel Door Factory

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Linda Boss Steel Door Factory Durable Fire Barriers Now！

29/10/2026

UL American Standard Steel Door with customizable dimensions and hardware



27/10/2026

This oversized steel fire door is furnished with US-listed panic exit device (panic bar) and top & bottom latches (bolts). The panic bar meets American fire safety codes, while the top and bottom bolts enhance door rigidity and sealing performance.




23/10/2026

This video shows the full production process of steel fire doors at Zhuohong, our professional factory. We provide UL & CE certified fire doors with custom sizes and US standard hardware


21/10/2026

Nice meeting you at Canton Fair!
You are welcome to visit our steel fire door factory while you are in Guangzhou.
We will show you our production line, baking paint workshop, fire door samples and QC process. Pick-up from Guangzhou can be arranged.
Please let me know your free time if you are interested.



20/10/2026

This steel fire door is equipped with a movable sub-frame of 300mm width. It can flexibly adapt to on-site wall dimensional errors and perfectly resolve wall fitting problems during installation.



12/10/2026

Steel Watertight Door
Marine & Offshore Steel Watertight Door, with reliable watertight performance, robust steel construction, corrosion resistance. Custom size & hardware available, meets marine standards.

10/10/2026

• Electrostatic powder coating, oven cured

• Premium textured finish: sand grain / hammer tone / matte

• Anti-fingerprint & hide minor scratches

• Strong anti-corrosion & rust protection

• RAL custom color available

• Coating does not affect fire rating

• Low VOC, durable, no peeling or chipping


rated door

10/10/2026

Precision CNC Cutting Steel Door Series
Accurate size, smooth edge, high consistency & stable structure
door door

09/10/2026

Steel Fire Door with Push Bar Exit Device Series
Our steel fire doors are equipped with certified push bar exit devices (panic bar). When emergency occurs, simply push the bar to open the door quickly for evacuation.
Available with different fire ratings (1hr / 2hr). Constructed with 16GA /18GA steel sheet, various frame sizes for your selection. Compliant with UL / EN fire standards.
door door

04/10/2026

ull shipment ≠ ready-for-install delivery.
Fire doors should be packed by floor and installation sequence to avoid repeated handling on construction sites.

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Nanchanghsien

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