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PyroTechnics Beginning of Paper special effects are widely used in motion picture production to create all types of effects involving explosions, fires, light, smoke and sound concussions. The types of materials used include flash powder, flash paper, gun cotton, black powder (gunpowder), smokeless powder, deton .... Middle of Paper .... materials are Class B explosives. They will burn, but not explode unless confined. Examples are black powder and pellet powder, safety fuses, igniters, igniter cord, fuse lighters, Class B special fireworks, and Class B composite solids propellants. Class C explosives are common fireworks. Note that short lengths of Primacord may be classified as Class C under certain conditions. Both Class B and C explosives are also called low explosives. All pyrotechnic materials and other explosives consist of an oxidizer (source of oxygen) and a r .... 484 words | 2 pages Subscription Length Price Join 30 days membership (recurring) $19.95 90 days membership (recurring) $39.95 180 days membership (non-recurring) $69.95