· Material: galvanized steel DX53 D+Z275 or DX53 D+Z80 with a thermal  25mm fibreglass insulation and two quick-acting closures. 

· Gasket: rubber gasket on panel

· Cam lock system

· Safety wire: stainless steel safety wire is optional upon request

size(L*W):  240x150mm

                375x240mm

                500x368mm

                649x500mm

Installation: Mounted on the flat side of rectangular ducts for inspection and maintenance to the ducts

Company profile

our advantages

Established in 1997 & located in Yuyao Ningbo China, Yuyao Jingqiao Hardware Factory (also names as Ningbo Aier Ventilation Equipment Co., Ltd) has been a leading manufacturer of HVAC Accessories & Custom Metal Stamping Parts for over 20 years

Hydraulic Press Production Line

Progressive Die Pressing Production Line

Robot Arm Transfer Production Line 

Fully Automatic Powder Coating Line

In-house Tooling Workshop

Assembling Lines

· Competitive Pricing

· Strict Quality Control

· Fast & Stable Delivery Time

· Comprehensive Range

· Strong R&D Support

Excellent Customer Service

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