We visit every factory before you buy

Every manufacturer on Zelenberg has had a visit from our team in China.

Explore manufacturersHow it works
A Zelenberg team member checking a part on a factory production line
Visited by Zelenberg
By Zelenberg12 May 2026

The Visited badge means a Zelenberg team member went to the factory in person. The date shows when we were there, and a visit report with photos and notes stands behind it. It is a record of what we saw, not a certificate, so you can start your search with evidence and decide what to check next.

What Visited means

We went there

Our team visited the factory.

The date is shown

You see when we were there.

A report backs it

Photos and notes from the visit.

Visited

All three together make the badge.

How a visit works

  1. Step 1

    We plan the visit

    We agree the date, the site and what to see.

    Our team member talking with factory staff
  2. Step 2

    We go on site

    Our team visits the factory in person.

    A factory site seen from above
  3. Step 3

    We record what we see

    Photos and notes from every area we visit.

    A Zelenberg team member taking notes beside a filling line
  4. Step 4

    We publish the date

    The badge and visit date go on the profile.

What we check

Checking a production line
Production lines
  • We walk every production area we are shown.
  • We note which lines are running on the day.
  • We photograph the lines and work in progress.
Tractor engines on an assembly line
Machines and equipment
  • We list the main machines we see.
  • We photograph the equipment in use.
  • We note anything we could not see.
A full factory site with tanks and production units
The whole site
  • We confirm the address matches the profile.
  • We photograph storage and packaging areas.
  • We check the company papers on site.

Every badge has a report

The date, the photos and our notes, in one place.

Visit report · sampleExample manufacturerChangzhou, Jiangsu, China
Visited by Zelenberg12 May 2026
Visit photo: filling lineVisit photo: production lineVisit photo: warehouse
Site visited
Main production site
Visited by
Zelenberg team, China
Photos in report
48 photos
Report reference
ZB-VR-26-0142
Areas on this visit
  • Production linesChecked
  • Machines and equipmentChecked
  • Storage and packagingChecked
  • Company documentsChecked
  • LaboratoryNot assessed

Look for the badge

Diesel engines for tractors on an assembly line
Agricultural machineryDiesel engine for tractorsExample manufacturer
Visited by Zelenberg12 May 2026
On every product
Example manufacturer factory site
Example manufacturerChangzhou, China
TractorsEnginesSpare parts
Visited by Zelenberg12 May 20262 visits on record
A factory site with tanks and production units
Example fertilizer plantShijiazhuang, China
FertilizersGranulesBulk bags
Visited by Zelenberg03 Mar 20261 visit on record
On every factory profile

Check the date

A newer visit means newer information. Need a fresh look? We can go again.

Latest visit12 May 2026
Earlier visit08 Aug 2025
Request a new visit

Want a closer look?

Factory Visit

We visit the factory for your order and send a dated report on your questions.

View service

Sampling & Delivery

We collect a sample from current production and send it to the address you choose.

View service

Laboratory Testing

You choose a laboratory from our list. We send the sample and share the result.

View service

Pre-Shipment Report

When your goods are ready to ship, we send a dated, factual report on them.

View service

Quick answers

Still have a question?

Contact us
Is every manufacturer visited?

Yes. Every manufacturer on Zelenberg has had a visit from our team.

Is Visited a certificate?

No. It shows we were there and when. It does not guarantee quality or delivery.

Can I ask for a new visit?

Yes. Request a Factory Visit. We agree the scope and cost with you first.

Where is the visit report?

On the factory profile. Sign in to see your access.

Do I still need testing?

It depends on your order. A visit does not replace a lab test or a pre-shipment check.