<p>the sequential door closer ensures the doors close in the "right order," while the door closer ensures they "close properly." Understanding their differences is key to selecting the right components that meet safety standards while enhancing usability.for reliable door control hardware, consider 3H Hardware</p>
<p>the sequential door closer ensures the doors close in the "right order," while the door closer ensures they "close properly." Understanding their differences is key to selecting the right components that meet safety standards while enhancing usability.for reliable door control hardware, consider 3H Hardware</p>
Aside from choosing the right materials, regular maintenance is essential. Periodically cleaning hardware surfaces to remove salt, dust, and accumulated water can effectively delay rust formation. Additionally, opt for accessories designed with drainage holes or channels to help eliminate water buildup and reduce the risk of corrosion.
This exhibition represents a dual breakthrough for 3H Building Hardware in terms of brand influence and market expansion. It not only strengthens the company’s position in the domestic market but, more importantly, opens the door to the ASEAN market.
CZH47B
3H INC.
Description:
Item No. | CZH47B |
Size | 151*56*24mm |
Application | Outward Opening window |
Length of shaft | Optional |
Material | Aluminum alloy |
Surface Treatment | Powder coating |
Color | Optional |
Components | Shaft,cover |
Function | Durable,easy-installation,smooth-operation |
Package | Box |
Specification:

Product Description:
Divided into left or right version
The length of shaft can be customized
FAQ
1. Q:What is the definition of handle?
A: Controlling device that drives up transmission devices, multi-point locking devices and achieves the opening and closing of windows and doors.
2. Q:What's the performance index of this handle?
A: The operating standard is JG/T129-2017.
Repeatedly open and close for 25,000 times.
The handle can remain undamaged under 25N.
The deviation from the handle shank curve is less than 5 degrees.
Description:
Item No. | CZH47B |
Size | 151*56*24mm |
Application | Outward Opening window |
Length of shaft | Optional |
Material | Aluminum alloy |
Surface Treatment | Powder coating |
Color | Optional |
Components | Shaft,cover |
Function | Durable,easy-installation,smooth-operation |
Package | Box |
Specification:

Product Description:
Divided into left or right version
The length of shaft can be customized
FAQ
1. Q:What is the definition of handle?
A: Controlling device that drives up transmission devices, multi-point locking devices and achieves the opening and closing of windows and doors.
2. Q:What's the performance index of this handle?
A: The operating standard is JG/T129-2017.
Repeatedly open and close for 25,000 times.
The handle can remain undamaged under 25N.
The deviation from the handle shank curve is less than 5 degrees.
