![2Pcs Heavy Duty Cast 304 Stainless Steel Concealed Hinge For Marble Granite Panel Fire Hydrant Flush Wall Door - AliExpress 2Pcs Heavy Duty Cast 304 Stainless Steel Concealed Hinge For Marble Granite Panel Fire Hydrant Flush Wall Door - AliExpress](https://ae01.alicdn.com/kf/Hf2ffd6f8e64645e39c348d5bb51cf120G/2Pcs-Heavy-Duty-Cast-304-Stainless-Steel-Concealed-Hinge-For-Marble-Granite-Panel-Fire-Hydrant-Flush.jpg)
2Pcs Heavy Duty Cast 304 Stainless Steel Concealed Hinge For Marble Granite Panel Fire Hydrant Flush Wall Door - AliExpress
![QQ: Spring Hinges on Fire Doors - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene. QQ: Spring Hinges on Fire Doors - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.](https://idighardware.com/wp-content/uploads/2023/01/Ives-Spring-Hinge.jpg)
QQ: Spring Hinges on Fire Doors - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.
![Self-Closing Door Hinge, 4 Inches, 1/4" Radius Corner, Polished Brass by Stone Harbor Hardware - Amazon.com Self-Closing Door Hinge, 4 Inches, 1/4" Radius Corner, Polished Brass by Stone Harbor Hardware - Amazon.com](https://m.media-amazon.com/images/I/61lpE82QIML.jpg)