<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.
LBD05
3H INC.
Item No. | LBD05 |
Size | 63*24.2*26mm |
Application | Sliding window |
Material | Plastic |
Load Bearing | 30KG/pair |
Surface Treatment | / |
Color | Black+Red |
Components | screws |
Function | durable,easy-installation,smooth-operation |
Package | Polybag |
Specification

Product Description
1. Maximum load bearing is 30 kg/pair.
2. Many options for nylon roller,please give clean indication of parameter of the rail shape and angle when place the order.
The Maintainance of Rollers
1.The rollers need to be checked and maintained in a certain period,the bottom guide matched with roller should be clean
and without sand,cement,dust and the other hard mess and corrosion,because these will let the doors and windows operated
unsmoothly,and damage the rollers.
Item No. | LBD05 |
Size | 63*24.2*26mm |
Application | Sliding window |
Material | Plastic |
Load Bearing | 30KG/pair |
Surface Treatment | / |
Color | Black+Red |
Components | screws |
Function | durable,easy-installation,smooth-operation |
Package | Polybag |
Specification

Product Description
1. Maximum load bearing is 30 kg/pair.
2. Many options for nylon roller,please give clean indication of parameter of the rail shape and angle when place the order.
The Maintainance of Rollers
1.The rollers need to be checked and maintained in a certain period,the bottom guide matched with roller should be clean
and without sand,cement,dust and the other hard mess and corrosion,because these will let the doors and windows operated
unsmoothly,and damage the rollers.
