<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.
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Factory Price Curtain Wall Automatic Locking Top Hung Window System Hardware Accessories
3H INC.
Item No. | MQS01 |
Size | maximum height and width of window sash can be up to 2m |
Application | Curtain wall window |
Load Bearing | 200kg |
Material | 304 stainless Steel |
Surface Treatment | Powder coating |
Color | handles' is customized,the other is natural |
Components | fork handle,pneumatic positioning stay,window frame locking part,multi-point locking rod... |
Function | automatic locking |
Package | Box |
Specification

Item No. | Item name | Remark |
1 | Fork handle | Optional |
2 | Connecting rob | / |
3 | Corner Device | / |
4 | Connecting block | Increase the lockable points in accordance with the regulation of window sash |
5 | Pneumatic positioning stay | Selection as per the regulation of window sash |
6 | Elevating block | / |
7 | Hung window friction stay | Non-hook top hung window should be installed with this product |
Product Description
1.Achieve the automatic locking function,under the influence of the certain forces,the pneumatic spring of pneumatic positioning stay can be contracted automatically,then,the window will be closed to prevent the window sash from damage and protect the public safety efficiently;
2.Adopting with the pneumatic positioning stay device which is with the hydraulic buffering function;
3.Adapting to the size of different windows by the configuration of the lock points, which can satisfy the customers’ requirements about door and window physical functions;
4.The maximum bearing load of single sash is 200kg,the maximum height and width of window sash can be up to 2m;
5.About the appearance,there are 32 kinds of standard color for selecting to satisfy the customers’ different requirement;
6.Suitable for hooked curtain wall top hung window.
Item No. | MQS01 |
Size | maximum height and width of window sash can be up to 2m |
Application | Curtain wall window |
Load Bearing | 200kg |
Material | 304 stainless Steel |
Surface Treatment | Powder coating |
Color | handles' is customized,the other is natural |
Components | fork handle,pneumatic positioning stay,window frame locking part,multi-point locking rod... |
Function | automatic locking |
Package | Box |
Specification

Item No. | Item name | Remark |
1 | Fork handle | Optional |
2 | Connecting rob | / |
3 | Corner Device | / |
4 | Connecting block | Increase the lockable points in accordance with the regulation of window sash |
5 | Pneumatic positioning stay | Selection as per the regulation of window sash |
6 | Elevating block | / |
7 | Hung window friction stay | Non-hook top hung window should be installed with this product |
Product Description
1.Achieve the automatic locking function,under the influence of the certain forces,the pneumatic spring of pneumatic positioning stay can be contracted automatically,then,the window will be closed to prevent the window sash from damage and protect the public safety efficiently;
2.Adopting with the pneumatic positioning stay device which is with the hydraulic buffering function;
3.Adapting to the size of different windows by the configuration of the lock points, which can satisfy the customers’ requirements about door and window physical functions;
4.The maximum bearing load of single sash is 200kg,the maximum height and width of window sash can be up to 2m;
5.About the appearance,there are 32 kinds of standard color for selecting to satisfy the customers’ different requirement;
6.Suitable for hooked curtain wall top hung window.
