Buying guides

Practical guidance for sourcing partitions from China — what to verify, what to ask for, and how to read supplier claims.

How to tell a factory from a trading company

This is the single most consequential question when sourcing from China, and it is genuinely difficult to answer from a platform listing. Indicators that point toward a real manufacturer:

  • An independent company website that describes production — not just a product catalogue. Look for process descriptions, equipment, or a factory tour section.
  • A published factory address that resolves to an industrial area when you check it on a map.
  • Production photographs showing your product being made, rather than finished goods photographed in a showroom.
  • Willingness to do a live video call from the production floor without extensive scheduling friction.

None of these is conclusive alone. Trading companies can present a convincing front. The most reliable check remains asking specific technical questions about panel construction and watching whether the answers come quickly and in detail.

What to put in a quotation request

Quotations are only comparable if the specification is fixed. Include:

  • Product type and configuration (stacking, sliding, folding)
  • Panel thickness and core material, or state that it is open
  • Required acoustic rating and the test standard you need it to meet
  • Required fire rating and standard
  • Clear opening dimensions and height
  • Finish specification, or a reference image
  • Destination port and preferred Incoterm
  • Required delivery window

A supplier who quotes without asking about several of these is likely quoting a standard product and will revise upward later. See the project form for the fields we ask buyers to fill in.

Reading certifications correctly

Certification claims are where most confusion arises. A few distinctions worth knowing:

  • A test report is not a certificate. An acoustic rating should come with a report from a recognised laboratory naming the tested construction, the standard used, and the result. Ask for that report.
  • A management system certificate is not a product certification. ISO 9001 tells you about the company's quality management process. It says nothing about whether a specific partition achieves a specific rating.
  • Match the tested construction. A report for a 100 mm panel does not cover a 65 mm panel. Check that the tested build matches what you are buying.
  • Check the issuing body. Reports are only meaningful when issued by a laboratory recognised in your destination market.

On this directory, certifications are recorded with their source. A certification marked “Source recorded” has a link you can check; one marked “Verified” has also been checked by our editors.

Understanding the Factory Score honestly

Factory Score measures published, verifiable information — not product quality or commercial reliability. A capable manufacturer with a Chinese-only website and no English documentation will score low here. A trading company with a polished English site and a long certification list may score higher while manufacturing nothing.

Use the score to find companies whose data you can verify, then do the commercial diligence yourself. The methodology page lists exactly what each component measures and how many points it carries.

Practical next steps