Your design. Your idea. We make it real.
RUIDAZHI is a China factory supply-chain agent for stock and custom products. Tell us what you want to make — we handle product screening, factory verification, samples, production, inspection, logistics and after-sales.

China factory network · Changsha, Hunan
01Portfolio
Product families, documented.
Each page presents one product family or technology platform: what it does, how it works, which models exist and what a buyer needs to check.
All solutions02The ten services
Tell us what you want. We handle the rest.
Product screening, best price, samples, factory verification, production follow-up, inspection, logistics, after-sales, technical documents and product improvement.
All services- 01
Product screening
Tell us the product, market and target price. We screen the factory network and shortlist what actually fits — not every listing that matches a keyword.
- 02
Best price
We compare quotes and break down material, labour, tooling and freight, then negotiate the best workable price for the volume and specification.
- 03
Samples
Sample units and test reports before you commit. We manage revisions, approval and the gap between the sample and the production build.
- 04
Factory verification
We check the factory is real, review its business licence and relevant certifications, verify references and visit or audit the production site.
- 05
Production follow-up
We follow the schedule, materials, changes and issues on the line, and keep you updated with photos and written reports.
- 06
Inspection
In-line and pre-shipment inspection against agreed acceptance criteria, with a photo report and corrective actions before dispatch.
- 07
Shipping & logistics
Consolidation, export documents, freight booking and door-to-door delivery — one shipment and one document set for multiple factories.
- 08
After-sales support
We stay on the order after delivery: replacements, corrective actions, spare parts and factory follow-up.
- 09
Technical documents
Datasheets, drawings, test reports, certificates, packing lists and customs documents, prepared for your engineering and compliance teams.
- 10
Product improvement
Cost-down, material substitution, packaging and design changes to improve the product, the margin or the production yield.
03How we work
Five steps. No black boxes.
Every stage has an owner, a document and a date. You see the same information we do — specifications, sample results, inspection records and shipping documents.
- 01
Product brief
Tell us the product, target price, market and volume — stock or custom. A photo, reference link or drawing is enough to start.
- 02
Factory screening
We shortlist real factories, verify licences and capability, compare quotes and return a cost breakdown with the options.
- 03
Sample & approval
Samples, test reports and revisions; we confirm the specification and acceptance criteria before production.
- 04
Production & inspection
We follow the line, inspect against the agreed criteria and prepare the technical file before packing.
- 05
Shipping & after-sales
Consolidation, export documents, freight and after-sales support — one accountable partner after the container leaves.
Lead times are confirmed in the quotation after the specification and sample stage. We reply within 12 hours.
04Verification & documentation
Real factories. Real documents.
Factory verification, inspection records and technical files stay with the order. Before a deposit we check who the factory is; before shipment we check what is in the box.
How verification works- 01
Factory verification
Business licence, factory address, references, certifications and on-site capability are checked before a deposit.
- 02
In-process follow-up
Materials, changes and critical assembly steps are tracked against the approved specification while the order is running.
- 03
Pre-shipment inspection
Finished goods are inspected against the agreed acceptance criteria, with a photo report before dispatch.
- 04
Technical file
Datasheets, drawings, inspection records and shipping documents are kept with the order and shared on request.
Next step
Tell us what you want
to make.
Send a product photo, reference link or drawing. We will come back with the factory route, samples and a production plan.