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What does FR4 stand for?

What does FR4 mean? We have 2 definitions. Read most used FR4 meanings below.

Category: All acronyms (2)Medicine & Science (2)

• FR4 — Flame Retardant 4
• FR4 — fixed ratio 4

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Most Searched Abbreviations For Words

• Ratio
• Retard
• Flame
• Fix
• 4
• Flame retarded