<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.
504030-2BB
3H INC.
Item No. | European standard door hinge with oil-2BB |
Size | / |
Application | heavy weight doors and doors requiring high frequency service |
Max.Door weight(kgs) | 130kgs |
Material | 304 Stainless steel |
Surface Treatment | Polish / satin |
Color | silver |
Components | Screws |
Function | durable,easy-installation,smooth-operation |
Specification

Product Description
1. Satin / polish
2. Different size be offered
3. With Ball Bearing
4. Heavy Weight from 20kgs-130kgs
5. Application: - ball bearings
- Non-rising removable pin with button tip and plug
- For use on heavy weight doors and doors requiring high frequency service
Item No. | European standard door hinge with oil-2BB |
Size | / |
Application | heavy weight doors and doors requiring high frequency service |
Max.Door weight(kgs) | 130kgs |
Material | 304 Stainless steel |
Surface Treatment | Polish / satin |
Color | silver |
Components | Screws |
Function | durable,easy-installation,smooth-operation |
Specification

Product Description
1. Satin / polish
2. Different size be offered
3. With Ball Bearing
4. Heavy Weight from 20kgs-130kgs
5. Application: - ball bearings
- Non-rising removable pin with button tip and plug
- For use on heavy weight doors and doors requiring high frequency service
