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C-4 (explosive) - Wikipedia
How C-4 Works - HowStuffWorks
Plastic explosive - Wikipedia
Composition C - Wikipedia
The Evolution of C4: A Journey from Battlefield to Civilian Use
C4 Explosive Explained - Military.com
C-4: The Vietnam-Era Explosive Still Used Today
Acute C4 Ingestion and Toxicity: Presentation and Management
What is “C-4 Explosive?” Can Terrorists Obtain It? - Medium
C-4 (explosive) - Wikiwand