https://www.truckinginfo.com/news/guayule-rubber-samples-offered-for-testing-as-tire-rubber-alternative
Guayule Rubber Samples Offered for Testing as Tire Rubber Alternative | Heavy Duty Trucking
Oct 27, 2012 - A company that grows drought-tolerant crops is publicly releasing the first samples of domestically produced guayule rubber to manufacturers. Guayule is being...
rubber samplesfor testing