<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.
PCQ3501
3H INC.
Item No. | PCQ3501 |
Size | Details in sheet |
Application | Casement door |
Length of fork | Optional |
Material | Aluminum alloy |
Surface Treatment | Powder coating |
Color | Customized |
Components | screws |
Function | durable,easy-installation,smooth-operation |
Package | Box |
Specification


Product Description
Operating standard:JG/T126-2017"Construction Door and Window Hardware-Multi-point Transmission Device".
Transmission lock closed circulation 30,000 times,all the parts without distortion and don't affect use.
Scope of application :Building exterior wall inside and outside are casement windows,casement doors,
sliding doors and windows,and hung windows.
4.Corrosion resistance NSS test reach 96 hours,the degree of protection is not less than 8 grades.
5.When the transmission device is in lockup position,giving 26N.m torque at handle lockup direction,all parts
don't have any damage and deformation.
Item No. | PCQ3501 |
Size | Details in sheet |
Application | Casement door |
Length of fork | Optional |
Material | Aluminum alloy |
Surface Treatment | Powder coating |
Color | Customized |
Components | screws |
Function | durable,easy-installation,smooth-operation |
Package | Box |
Specification


Product Description
Operating standard:JG/T126-2017"Construction Door and Window Hardware-Multi-point Transmission Device".
Transmission lock closed circulation 30,000 times,all the parts without distortion and don't affect use.
Scope of application :Building exterior wall inside and outside are casement windows,casement doors,
sliding doors and windows,and hung windows.
4.Corrosion resistance NSS test reach 96 hours,the degree of protection is not less than 8 grades.
5.When the transmission device is in lockup position,giving 26N.m torque at handle lockup direction,all parts
don't have any damage and deformation.
