Product development
Four-in-one waste sorting bin development
A four-compartment sorting bin developed at Yijia and protected by a design patent and a utility-model patent.
Read caseCases
Factual project and factory evidence
Representative work based only on supplied products, tooling and documented factory visits—without invented customer names or outcomes.
Custom components
Custom household-appliance plastic components
Injection-moulded appliance components developed from customer drawings or physical samples.
Read caseTooling and moulding
Mould development and injection workflow
How a part moves from drawing review through tooling, sampling and injection moulding in one connected workflow.
Read caseFactory visit
Overseas visitor factory audit
Overseas visitors toured production and tooling areas during a factory audit. Visitor and company names are not published.
Read caseFactory visits
Customer review at the manufacturing site
Supplied photographs document on-site factory visits and production review. Visitor identities and commercial outcomes are intentionally not inferred.
