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・ Composite construction
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Composite epoxy material
・ Composite fermion
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Composite epoxy material : ウィキペディア英語版
Composite epoxy material
Composite epoxy materials (CEM) are a group of composite materials typically made from woven glass fabric surfaces and non-woven glass core combined with epoxy synthetic resin. They are typically used in printed circuit boards.
There are different types of CEMs:
CEM-1 is low-cost, flame-retardant, cellulose-paper-based laminate with only one layer of woven glass fabric.
CEM-2 has cellulose paper core and woven glass fabric surface.
CEM-3 is very similar to the most commonly used PCB material, FR4. Its color is white, and it is flame-retardant.
CEM-4 quite similar as CEM-3 but not flame-retardant.
CEM-5 (also called CRM-5) has polyester woven glass core.
==See also==

* Micarta

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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