Corporate Overview

Founded in 1994, QC WITNESS. (QCW) elaborates about the fact that we are dedicated to best quality, on time deliveries and cost saving proposals with customers to build a long term strategic partnership and from there we developed many other products expertises such as pneumatic tools, castings, air accessory kits and equipment manufacturing, etc .

As a professional manufacturer and designer of our core business, QCW management team is comprised of well-experienced managers and technical talents from air tool-related industries. With proficient management skills and excellent product development capability, QCW delivers competitive price with outstanding quality. Our customers are top-notch industry leaders from North America, Japan, and Europe. With an annual growth rate of at least 10% in revenues, QCW has expanded healthy over years.


Core Business



  • Material evaluation
  • Drawing review/Engineering discussion
  • Design for manufacturing review
  • Mold/Tooling/Fixture design and analysis
  • Quality/Manufacturing/Delivery
  • Factory audit/Maintenance



Industrial Components


  • High quality gardening wheel
  • High quality air hose
  • High quality accessory parts
  • Accessory kit design
  • High quality Manifolds



Pneumatic Tools


  • One stop shopping/Total Solution


Core Values
Time for Design
Strong support at initial developing stage; short the lead time from tooling design to real product.
Time for Cost
Benefit customers through internal process improvement. Always provide the best price to customers.
Time for Market
Provide vertically integrated service from component level to assembly finished goods.
Time for Quality
Enhance preventive action toward quality issue, closely monitor product quality.