Architectural Hardware & Fasteners
Door hardware, cabinet hardware, and fasteners for commercial and residential projects — product classes, common grades, and how to compare supplier quotes without guesswork.
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Independent sourcing intelligence
ChinaCustomParts
The neutral, certification-focused guide to sourcing hardware & custom parts from China.
Straight-talking research on architectural hardware, fasteners, custom manufacturing, and the certifications that matter — written for buyers who want to verify before they commit.
Free to read · No commissions · Not a factory, not a marketplace
Start with your product category
Two sourcing tracks cover most industrial import projects. Each one links to working guide drafts that are being verified before final publication.
Custom CNC & Sheet Metal Parts
From prototype to production: sheet metal fabrication, CNC machining, and surface finishing — including the specifications, tolerances, and documentation buyers should ask for.
Explore the manufacturing guides →Popular guides
Working drafts are online now; each will be expanded and verified against primary sources before it is finalized.
CNC Machining: Materials, Tolerances & Finishing
Planned walkthrough of the key specification choices that shape part cost, lead time, and quality.
Read the working draft →ASTM, CE & UL: Comparing Common Marks
What these marks are, where they are commonly referenced, and what they do — and don't — certify.
Read the working draft →Factory Audits: What to Verify On-Site
Ownership, equipment, processes, and documentation checks to run before you commit to a supplier.
Read the working draft →Not a factory. Not a marketplace.
ChinaCustomParts exists to close the information gap between supplier marketing and buyer reality. Our independence is the product.
Independent by design
We do not sell parts, broker orders, or collect commissions from suppliers. Nothing on this site is paid placement, and no factory or platform can buy coverage or ranking.
Certification-focused
We translate standards and certification questions — such as references to ASTM, CE, and UL marks — into practical buying context. We never invent clauses, grades, or figures we have not verified.
Honest about progress
Detailed guides remain drafts until they are verified. Content that references standards, duties, factories, or prices is clearly marked and carries the note: verified content coming soon.
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