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Primacord
Primacord is a brand of detonating cord used in blasting. The registered trademark Primacord was originally owned by the Ensign-Bickford Company;〔http://www.britannica.com/EBchecked/topic/476049/Primacord〕 Ensign-Bickford sold the trademark to Dyno Nobel in 2003,〔http://www.dynonobel.com/about-dyno-nobel/history/〕 who manufacture it in their Graham, Kentucky factory. The name is also used as a genericized trademark for any detonating cord. ==Description== Primacord consists of a continuous core of PETN, RDX or other high explosive, bound by textile yarns and finished with plastic and wax as waterproofing agents.〔(【引用サイトリンク】title=Primacord Detonating Cord - product technical data sheet )〕 It is produced in eight strengths: Primaline is a related product differing principally in having a plastic jacket instead of textile. Primaline is also available in higher loadings, up to 85 g/m (400 gr/ft):
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Primacord」の詳細全文を読む
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