About Us

HAOYE TRADING.,CO.,LTD

KNG was founded in 1996, headquarters covers an area of 160,000㎡. We have been focusing on providing Safety window & door hardware system solutions for 25 years. Passed the IS09001:2000 certification of SGS in 2002. KNG is currently one of the largest window & door accessories manufacturers in China with a relatively complete quality management system. It includes window & door hardware system design center, research and testing center, smart factory, sales and service center. We serve more than 70 countries and regions.

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  • 1996
    1996
    Founding Time
  • 70+
    70+
    Countries Served
  • 160000 ㎡
    160000 ㎡
    Factory Covered
  • 100
    100
    Employee Count
TUV Audited Supplier
Business Licence

Our Advantage

ONE-STOP SERVICE

ONE-STOP SERVICE

All accessories related to buiding can be provided

PROFESSIONAL

PROFESSIONAL

25+Years’ experiences in door and window hardware design and production, pre-sale and after-sale technical support.

GUARANTEE THE QUALITY

GUARANTEE THE QUALITY

Experienced team of engineers and strict quality control.