Landun
Fire Doors
Steel insulated fire doors built to GB 12955-2024, the Chinese national standard revised in 2024, held under five numbered CCCF fire-product certificates first issued on 28 July 2026 and valid to 27 July 2031: single-leaf in A0.5, A1.0 and A1.5, double-leaf and unequal-leaf in A1.0 and A1.5. The company catalogue adds timber and glazed fire doors, fire windows, fire shutters and security fire doors. The registered entity was set up in December 2025 and records one insured employee, while the application claims ten million doors a year — so capacity, staffing and who exports are the questions to settle before a first order.
Fire doors, windows and shutters.
Steel Insulated Fire Doors — Single Leaf
The certified core of the range. CMH read five CCCF fire-product certificates and the matching type-test reports page by page in September 2026: single-leaf steel insulated fire doors are certified at class A0.5, A1.0 and A1.5, under model codes FM/S-1227-A0.5 and FM/TbS-1227-A1.0 and A1.5, to GB 12955-2024 under certification rule CCCF-CPRZ-33:2025. The class letter is the Chinese insulation-and-integrity grade and the number is the rated period in hours; it is not an EN or UL rating — see the FAQ.
Steel Insulated Fire Doors — Double Leaf & Unequal Leaf
Certified at A1.0 and A1.5 under model codes FM/TbS-2427 (double leaf) and FM/TbS-2127 (unequal leaf, one active and one passive leaf). Ask for the certified size envelope: fire-door certificates are issued against a tested leaf and frame configuration, and an opening larger than the tested one is outside the certificate unless a separate test or assessment covers it.
Timber & Glazed Fire Doors
Listed in the company catalogue. These were not among the five certificates read in September 2026, so on this page they are catalogue items, not certified ones. If you need them, ask for their own certificates and type-test reports before specifying.
Fire Windows & Fire Shutters
Also catalogue items rather than certified ones on the evidence read so far. Fire shutters in particular are a separate product family with their own test regime, drive and release mechanism; ask what is supplied with the shutter and who commissions it.
Security Fire Doors
A combined security and fire-rated door, listed in the catalogue. In China these carry two different product approvals. Ask which of the two this product holds, and for the certificate numbers.
What Has Not Been Supplied
No company website and no public account are on the application, and no drawings, hardware schedule, finish range or installation manual came with it. Hardware (closers, locks, hinges, seals, vision panels) decides whether a fire door still performs as tested, and nothing on file lists what is fitted. Ask for the hardware schedule that belongs with the certified configuration.
What the registry confirms, and what stays open.
Manufacturing Is in Scope, in Its Own Words
The registry read (2026-09-23, official registry source, held as a snapshot in CMH’s records) gives the scope as including 门窗制造加工 (door and window manufacture and processing), 门窗销售 (door and window sales), 五金产品制造 (hardware manufacture), 建筑装饰、水暖管道零件及其他建筑金属制品制造 (manufacture of building decoration, plumbing parts and other architectural metal products) and new-material R&D. A manufacturing clause is present and is quoted as written.
Import and Export Is Not in Scope
The registered scope contains no import/export clause. That does not stop the goods leaving China, but it means the exporter of record, the invoicing party and the customs registration are someone else, or have yet to be arranged. Ask who they are before you agree payment terms, and check that the name on the commercial invoice is the name on the contract.
One Insured Employee on Record
The application states 10–50 employees. The registry read records 1 person on social insurance at this entity. That gap is printed rather than smoothed over. Combined with a December 2025 registration date it is the single most important thing to resolve on a site visit: ask who operates the press, the filling line and the paint line, under which employer, and which steps are subcontracted.
Stated Capacity Does Not Reconcile
The application gives an annual capacity of 10,000,000 pieces and a monthly maximum of 1,000,000 pieces, against an MOQ of 500 pieces. Ten million fire doors a year is not consistent with one insured employee, a company registered in December 2025, or a unit-level registered address. The figures are reproduced here exactly as submitted and should be treated as unverified. Ask for a monthly output figure in door leaves, with the shift pattern and the number of presses behind it.
Registered Address Is a Unit, Not a Plant
The registered address is Room 103, Building 1, No. 119-1 Lianfeng New Road, Dalingshan Town, Dongguan. The application gives the same address for the factory. A unit-level address in a Guangdong town is compatible with an office or a small workshop; it is not by itself evidence of a fire-door production line, which needs a press, a filling station, a paint line and a curing area. Ask for a walkthrough video that shows the line and the certificate on the wall in the same shot.
One Administrative Penalty on Record
A commercial company-information service showed one administrative-penalty item when read on 2026-09-23; no abnormal-operations listing, no person-subject-to-enforcement record and no court case were found. That item came from a commercial aggregator rather than an official registry page, so its subject and date are not confirmed here. Ask the company for the decision document if the matter bears on your order.
What was checked — and what the check found.
Two different checks sit behind this page and they are kept apart. The registry read — status, scope, capital, insured headcount and the risk scan — comes from an official registry source read on 2026-09-23 and is quoted as recorded. The five CCCF certificates and five type-test reports were read page by page by ChinaMakersHub on 2026-09-12, and the certificate numbers, classes, standard and validity dates on this page come from those documents. Everything else — product families beyond the certified steel doors, MOQ, capacity, sampling and lead times and target markets — comes from the company’s own application and is unverified. Ask for a fresh copy of the certificates before you order and check the holder’s name against your contract party.
A fire-door maker registered in December 2025, read off the record.
Landun is Dongguan Landun New Materials Technology Co., Ltd. (东莫市蓝盾新材料科技有限公司), registered on 9 December 2025 in Dalingshan, Dongguan, with registered capital of RMB 1 million; paid-in capital is not disclosed. An official registry read on 2026-09-23 confirms active status and a scope that covers door and window manufacture and processing, hardware manufacture and architectural metal products. The scope contains no import/export clause.
Its certified product is the steel insulated fire door. ChinaMakersHub read five CCCF fire-product certificates and the five matching type-test reports page by page on 2026-09-12: single-leaf at A0.5, A1.0 and A1.5 under model codes FM/S-1227 and FM/TbS-1227, double-leaf at A1.0 and A1.5 under FM/TbS-2427 and unequal-leaf under FM/TbS-2127, all to GB 12955-2024 under certification rule CCCF-CPRZ-33:2025, first issued on 28 July 2026 and valid to 27 July 2031. The company catalogue adds timber and glazed fire doors, fire windows, fire shutters and security fire doors; those carry no certificate on the evidence seen so far.
Three things are open, and they matter more than usual here. The registry records one insured employee against the 10–50 stated in the application, and the company was registered only in December 2025. The stated annual capacity of ten million pieces does not reconcile with either fact. And with no import/export clause in scope, the exporter of record and the invoicing party are not established — ask who they are, and check the certificate holder’s name letter by letter against the party you contract with.
Certificates dated July 2026, company dated December 2025.
Company registered
Registered on 9 December 2025 in Dalingshan, Dongguan, with registered capital of RMB 1 million and a scope covering door and window manufacture and processing (registry read 2026-09-23).
Five CCCF certificates issued
Five fire-product certificates for steel insulated fire doors first issued on 28 July 2026, valid to 27 July 2031, to GB 12955-2024 under certification rule CCCF-CPRZ-33:2025.
Registry read · certificates read · joins CMH
CMH read the five certificates and five type-test reports page by page on 2026-09-12 and the registry record on 2026-09-23. Staffing, capacity and the export route remain open.
Where fire doors get specified.
Commercial Fit-Out & Offices
Stairwell, riser and corridor doors where a rated assembly is specified.
Hotels & Residential Towers
Corridor and apartment entrance doors combining fire rating with security.
Schools, Hospitals & Public Buildings
High-traffic rated doorsets with closers and hold-open devices.
Warehouses & Light Industrial
Fire shutters and rated personnel doors between compartments.
Builders’ Merchants & Distributors
Container-quantity stock lines in common sizes, subject to the certified size envelope.
Door Fabricators Abroad
Supply of leaves and frames to local firms that hold their own market approvals and fit locally.
Sourcing guides for this category
What Documents to Request From a Chinese Supplier Before Your First Order
Importing from China: The Compliance Checklist by Market
How to Write a Product Spec Sheet for a Chinese Factory
Product Inspection in China Before Shipment: A Buyer's Guide
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Frequently Asked Questions
What does Landun make?
Steel insulated fire doors are the certified part of the range: five CCCF certificates cover single-leaf A0.5, A1.0 and A1.5 and double-leaf and unequal-leaf A1.0 and A1.5, to GB 12955-2024. The company catalogue also lists timber and glazed fire doors, fire windows, fire shutters and security fire doors; those were not among the certificates read and are shown here as catalogue items.
Is this listing CMH-verified?
Yes, on two checks: an official registry read on 2026-09-23 confirms active status and a scope that covers door and window manufacture, and five CCCF certificates with their type-test reports were read page by page on 2026-09-12. It does not confirm staffing, the production line or the stated capacity — the registry shows one insured employee against 10–50 on the application, and the stated ten million pieces a year does not reconcile. Treat those as open.
What do A0.5, A1.0 and A1.5 mean?
They are Chinese fire-door classes under GB 12955. Class A is the insulated type, which limits both flame passage and temperature rise on the unexposed face; the number is the rated period in hours, so A1.5 is ninety minutes. The class is not interchangeable with an EN 1634-1 EI rating or a UL 10C listing, even where the minutes look the same, because the test furnace curve, the specimen restraint and the pass criteria differ.
The application says ten million doors a year. Is that real?
It is what was submitted, and it is shown as submitted. It does not reconcile with a company registered in December 2025, one insured employee and a unit-level address. Ask for a monthly figure in door leaves, the shift pattern, and how many presses and paint lines stand behind it — and ask to see them on video.
Does a Chinese CCCF certificate get accepted in Singapore, Malaysia or Thailand?
Not by itself. CCCF certification is China’s own compulsory approval for fire products and is issued against Chinese national standards such as GB 12955-2024. Importing markets normally run their own listing or approval route for fire-resisting doorsets, usually built on a local or European test standard, and typically ask for a test report from a laboratory they recognise plus a certificate naming the product and its tested configuration. Which route applies in Singapore, Malaysia and Thailand, and whether any of them recognises a GB test, was not confirmed when this page was written (September 2026). Ask a certification body in the destination market before you quote.
Which test standards will an overseas specifier usually ask for?
For fire resistance, EN 1634-1 is the European test method for door and shutter assemblies, with the result expressed as an EI or E classification under EN 13501-2; BS 476 Part 22 is the older British method still cited in several Commonwealth markets; UL 10C is the positive-pressure method used in the United States. Each is a different test, so a door certified to GB 12955-2024 has not been tested to any of them. Ask whether a test to the standard your market accepts exists, and if not, what it would cost and how long it would take.
Does the hardware need to be part of the certificate?
Yes, and this is the most common gap. A fire door is certified as an assembly — leaf, frame, seals, hinges, closer, lock and any vision panel — and swapping a component for one that was not in the test can void the classification. Ask for the hardware schedule that belongs with each certified configuration, and check that what is quoted to you matches it item by item.
Which HS code usually applies?
Steel doors and their frames and thresholds normally fall under HS heading 7308, subheading 7308.30 for doors, windows and their frames of iron or steel. National tariff lines differ and classification is decided by customs at import; confirm the line with your broker before shipping.
Talk to Landun Fire Doors directly.
Send the opening sizes, leaf configuration (single, double or unequal), the fire-resistance rating and the standard your market accepts, the finish, and the hardware you expect fitted — closer, lock, hinges, vision panel, panic bar. Ask in the same message for a copy of the five CCCF certificates and the matching type-test reports, and check the certificate holder’s name letter by letter against the company you will sign and pay. Ask which entity handles customs and invoicing, since import and export is not in this company’s registered scope. ChinaMakersHub will route the request.