An enclosure structure including an enclosure body, a handle, and a slot. The enclosure body includes a first end portion and a second end portion that are disposed oppositely to each other. The enclosure body is provided with a clearance hole, and the clearance hole is disposed between the first end portion and the second end portion, and the handle is rotatably disposed on the enclosure body and is disposed between the clearance hole and the first end portion. The handle includes an elastic connecting portion, a boss, and a pressing portion. The pressing portion is configured to control a limiting member to be stuck in or detached from the slot. The elastic connecting portion protrudes out of the enclosure body and two ends thereof are connected to the enclosure body and the boss, respectively; the boss and the enclosure body are spaced apart.

A fire resistant panel for a fire door, the panel including a frame providing a rigid bordering structure for the panel and having an inner face, an outer face, an inner side and an outer side, the frame surrounding an inner space; and a core disposed within the inner space, the core having a peripheral edge adjacent the inner side of the frame.

Molded articles are provided. An exemplary molded article includes an inner panel portion, a main body portion, and a contoured portion extending between and interconnecting the inner panel portion and the main body portion so as to surround the inner panel portion and be surrounded by the main body portion. The contoured portion includes contoured corner segments and contoured elongated segments extending between respective pairs of the contoured corner segments. The contoured corner segments have a first maximum thickness. The contoured elongated segments have a second maximum thickness that is greater than the first maximum thickness. Related methods, assemblies, and apparatus are also provided.

The invention relates to systems and techniques for manufacturing articles containing cellulosic material, a tackifier, and a binder, and related processes of making and using the cellulosic articles. In particularly exemplary embodiments, the manufactured articles are door skins, sometimes known as door facings, and doors made from the door skins. The article contains a lipophilic cellulosic material, a tackifier, and a binder.

Molded articles are provided. An exemplary molded article includes an inner panel portion, a main body portion, and a contoured portion extending between and interconnecting the inner panel portion and the main body portion so as to surround the inner panel portion and be surrounded by the main body portion. The contoured portion includes contoured corner segments and contoured elongated segments extending between respective pairs of the contoured corner segments. The contoured corner segments have a first maximum thickness. The contoured elongated segments have a second maximum thickness that is greater than the first maximum thickness. Related methods, assemblies, and apparatus are also provided.