A fire-resistant cord or OSH, sometimes a Bickford cord, is used to transmit a pulse into the distance in the form of a flame beam. Fire-retardant cord is…
Survival Tips, Prepper Guides, Gear Reviews
A fire-resistant cord or OSH, sometimes a Bickford cord, is used to transmit a pulse into the distance in the form of a flame beam. Fire-retardant cord is…