Quality Control

Quality Control

HOPO focuses on development and innovation in aspects of an intellectual control system for windows and doors, in cooperation with windows and doors manufacturers, following and complying with strict quality control regulations and standards.

HOPO’s product developments are mainly in areas such as decorative hardware, and functional fittings. The aesthetic design of the decorative hardware complies with ergonomic principles, providing better operational experience for end-users. Endurable functional fittings have to be the characteristic of easy operation. New ways of window operation are under development to improve quality and security for human life.

Research and Development

Our R&D capabilities ensures we only provide tested, efficient window and door solutions to our customers. We constantly test, feedback, fine-tune and assemble all components to ensure that the quality in the final product can match our high standards.

Product Testing

As a certified member of the Chinese National Accreditation Service (CNAS), our in-house quality assurance process is designed with the highest standards in mind. Our windows and doors constantly undergo a strict internal process before seeing the light for mass production. During this process, if any of our products fail to reach the standard, they are sent back to the design phase. Once this stage is cleared, there is a final inspection from domestic and international third-parties, before we start distributing to our customers.

  • Watertight performance
  • Wind pressure resistance
  • Air-tightness
  • Raw material/Composition analysis
  • Corrosion resistance
  • Hardness endurance test
  • Force entry resistance test
  • Torsion test
  • Weathering tests (heat & cold)
  • Ozone aging test
  • Air tightness, water tightness and wind pressure resistance

Expertise Manufacturing

The quality assurance is not complete without integrating our expert staff in the mix. Our manufacturing and laboratory facilities alongside our frequent training process are put together to develop an expert team of engineers that supervise the production phase and closely check the quality of the output.