Data or voice communications via digital or analog lines, and increasingly, wireless systems such as Ricochet Modems, cellular phones, pagers and satellite systems such as Iridium and Direct PC. Various derivatives of castor oil are used in mode of telecommunication such as :
· Polyurethane systems
· Polyamide resins
· Castor oil esters
· Waxes for cable jelly
· Capacitor fluids
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