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2. Door - Wikipedia

   en.wikipedia.org/wiki/Door

   A door is a hinged or otherwise movable barrier that allows ingress (entry) into and egress (exit) from an enclosure. The created opening in the wall is a doorway or portal. A door's essential and primary purpose is to provide security by controlling access to the doorway (portal). Conventionally, it is a panel that fits into the doorway of a ...

3. Fire door - Wikipedia

   en.wikipedia.org/wiki/Fire_door

   Fire door held open by an electromagnet. Most fire doors are designed to be kept closed at all times. Some doors are designed to stay open under normal circumstances, and close automatically in the event of a fire. Whichever method is used, the door's movement should never be impaired by a doorstop or other obstacle.

4. List of building materials - Wikipedia

   en.wikipedia.org/wiki/List_of_building_materials

   This is a list of building materials.. Many types of building materials are used in the construction industry to create buildings and structures.These categories of materials and products are used by architects and construction project managers to specify the materials and methods used for building projects.

5. High-speed door - Wikipedia

   en.wikipedia.org/wiki/High-speed_door

   High-speed doors are door systems, mainly used in industrial applications. They are technical enhancements of the generally known sectional doors, PVC fabric doors or roller shutters. The main difference is that the durable construction provides a higher operating speed and they are able to sustain a higher number of cycles (opening and closing ...

6. Masonite International - Wikipedia

   en.wikipedia.org/wiki/Masonite_International

   Masonite International Corporation is a designer, manufacturer and distributor of interior and exterior doors for the new construction and repair, renovation and remodeling sectors of the residential and non-residential building construction markets. Founded in 1925 in Laurel, Mississippi, It currently serves approximately 8,500 customers in 60 ...

7. Wood–plastic composite - Wikipedia

   en.wikipedia.org/wiki/Wood–plastic_composite

   Wood–plastic composite. Wood–plastic composites (WPCs) are composite materials made of wood fiber / wood flour and thermoplastic (s) such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), or polylactic acid (PLA). In addition to wood fiber and plastic, WPCs can also contain other ligno-cellulosic and/or inorganic filler ...