The structural foam developed in the 1960s is characterized by core foaming, non-foaming of the skin layer, external hard and toughness, high specific strength (strength per unit mass), low consumption, and increasingly extensive replacement of wood. Used in the construction and furniture industries. The chemical or radiation cross-linked foaming technology of polyolefins has been successful, resulting in a significant increase in the production of foamed plastics. The foamed plastic obtained by blending, filling, reinforcing and other modified plastics has better comprehensive performance and can meet the needs of various special purposes. For example, a glass fiber reinforced polyurethane foam obtained by reaction injection molding has been used as a structural component of an airplane, a car, a computer, etc., and a foam made of polybenzimidazole filled with hollow glass beads is light and resistant to high temperatures. , has been used in spacecraft. Expanded metal is sometimes considered an alternative to sheet metal or wire mesh. It combines some of the best features of both-providing a material that is stronger than thin wire mesh and has better air flow and drainage than sheet metal. Expanded Metal Mesh,Element Expanded Metal Mesh,Aluminum Expanded Metal Mesh,Ss Standard Expanded Metal Mesh HEBEI KAYI BUILDING MATERIAL TECHNOLOGY CO.,LTD , https://www.kayigrating.com