Inside HUANG CHANG Manufacturing & Exhibitions

Yiou Tools is the trading name and online store operated by HK YIOU TECHNOLOGY GROUP LIMITED.

Registered office:
Room 602, 6/F, Kai Yue Commercial Building
No. 2C Argyle Street
Mong Kok, Kowloon
Hong Kong

EU fulfillment and approved-returns logistics location:
ul. Dębowa 10, 55-040 Tyniec Mały, Wrocław, Poland
This location is used for EU logistics and approved returns and is not the company’s registered office.

Customer service: support@yioutools.com · +48 698 902 289

China manufacturing and fulfillment location: Zhangban Town, Taiwanese Investment Zone, Quanzhou, Fujian 362123, China.

This factory and warehouse supports manufacturing and some China-origin fulfillment. It is not the registered office of HK YIOU TECHNOLOGY GROUP LIMITED, the Yiou Tools customer-service address or the default returns address.

The HUANG CHANG brand and its associated manufacturing operation were established in 1992. Yiou Tools is the online store operated by HK YIOU TECHNOLOGY GROUP LIMITED.

A visual record of industrial facilities, production environments, warehouse activity, product displays and international trade-show engagement associated with HUANG CHANG materials supplied by the Owner. These images help visitors understand the working environments and industry context behind the product brand without claiming facility ownership, customer identity, production capacity or project results.

Manufacturing environments

Selected views show industrial machinery, workshop equipment, reels and tool components. They document visible production environments only; no factory size, capacity or ownership claim is made.

Industrial facility, office and workshop views supplied as brand documentation.

Industrial workshop machinery and production equipment — Industrial production machinery in a workshop environment.

Industrial workshop equipment, reels and tool components — Workshop equipment, reels and tool components.

Green industrial production machinery in a workshop setting — Industrial machinery shown in a production setting.

Warehouse activity and product display

Privacy-treated operational images show a HUANG CHANG-branded warehouse exterior and a segmented diamond saw-blade display without identifying people or making customer-performance claims.

HUANG CHANG-branded warehouse exterior with people and vehicle plates anonymized — HUANG CHANG-branded warehouse exterior. Faces and vehicle registration plates have been anonymized.

HUANG CHANG segmented diamond saw blade product display with person anonymized — Segmented diamond saw-blade product display. The person has been anonymized; no customer identity or performance result is claimed.

Global industry exhibitions

Trade-show views document product displays and industry engagement. Where an event name, place or date is not confirmed, the captions remain deliberately neutral.

HUANG CHANG trade-show booth with diamond tool displays and anonymized visitors — HUANG CHANG trade-show booth and diamond-tool display. Event name, location and date are not asserted; visitors are anonymized.

Industry exhibition discussion at a HUANG CHANG booth with faces anonymized — Industry exhibition discussion and product display. People are anonymized and no endorsement is implied.

Explore Yiou Tools and HUANG CHANG

Browse product categories, review the supporting documentation, or contact our team with a sourcing or product question.

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Page information

The visual material on this page is used with the owner’s permission. Where an image does not establish an event name, date, customer identity, site ownership or production capacity, this page does not make that claim.

Last reviewed: 18 August 2026. Explore Material Handling, the Diamond Tool Guides, and HUANG CHANG documentation.

Inside HUANG CHANG — Manufacturing, Warehouse & Global Exhibitions