Quality & compliance

Certificates and test reports.

Management system certificates, our social audit, product tests, shipping documents, our registered designs and trademarks. Open any document to see it in full.

Factory

Management systems and audits.

Certified quality, environmental and health-and-safety management, an independent social audit and our environmental self-assessment.

The amfori BSCI tile shows the monitoring summary (page 1); the full report is shared with buyers on request.

Watch winders

Watch winder tests for the EU, UK, US and Japan.

Safety, EMC and restricted-substance tests on our finished watch winders, and the certificates of the power adapters we supply with them.

Each report lists the models it covers. Ask us for the documents that apply to your model and market.

Safes and locks

Safes, fingerprint locks and combination drawers.

Certificates for our fireproof safes and for the electronic locks and combination drawers built into our safes and cabinets.

Certificates apply to the tested models. Ask us for the documents for your model and market.

Shipping and materials

Ready for air and sea freight.

Transport classification reports for products with batteries and magnets, battery and magnet safety data, and tests on the music movements in our jewelry boxes.

Our designs

Twelve registered designs of our own.

Watch winders, watch boxes, jewelry boxes and trunks designed by our team and registered as design patents in China.

Our brands

Registered trademarks.

The SUNYUNG mark and the brands we own, registered in China and Germany.

Start a project

Let’s develop your next product.

Send a sketch, a reference or a model number. We reply with materials, MOQ, timing and a quote.

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Lindsay LiangSales Manager

Zhanjiang, Guangdong, China · UTC+8

How it works

Get a quote in three steps

  1. 1 Choose your models Press "Add to Quote" on any product. Mix models, sizes and colours.
  2. 2 Review your Quote List Set quantities and add notes: logo, colour, packaging.
  3. 3 Send one request Our sales team replies by email with prices, MOQ and timing.
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