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A Leader in HVAC Accessories & Custom Metal Stamping Parts Manufacturing

Established in 1997, Yuyao Jingqiao Hardware Factory (also as Ningbo Aier Ventilation Equipment Co., Ltd) has been the leading manufacturer of HVAC Accessories & Custom Metal Stamping Parts for over 20 years. JH/Aier provides a comprehensive range of HVAC accessories for round and rectangular ductwork system.


In addition, having rich experience in producing metal stamping parts, JH/Aier can also produce custom (bespoke) metal parts made by pressing, deep drawing, laser cutting, riveting, etc. exactly according to customers’ requirements (drawings or samples), which has given us more flexibility and also advantage to satisfy our customers’ needs.


Thanks to the competitive pricing, high quality standard and excellent customer service, JH/Aier has been successfully present in both European & North American markets, currently supplying more than 20 countries while still expanding its export in the Middle-Eastern region and Australia.


JH/Aier strives to support its customers by the following key objectives:
  • Competitive Pricing
  • Strict Quality Control
  • Fast & Stable Delivery Time
  • Comprehensive Range
  • Strong R&D Support
  • Excellent Customer Service
JH/Aier can satisfy all your needs over your expectations!
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Why choose us?

We do what we do best

Competitive Price

High level automation reduces labor cost greatly, enable Aier to provide the best prices among Chinese competitors.

Strict quality control

ISO 9001 certified & SGS audited manufacturer, strictly perform Quality Control before, during and after production

Comprehensive range

A big range of Duct Fitting Accessories & Air Distribution Products enable customer source everything in one stop.

Strong R&D support

Inhouse tooling workshop and dedicated R&D engineers enable Aier to develop new products for customer more easily and cost efficiently.

Fast delivery

Large scale production & keeping semi-finished safety stock enable Aier to provide fastest delivery lead time for satisfying urgent need

Customer service

Aier does not only supply products but also deliver added-value services to customer (Pre-shipment inspection report, Shipping.
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