| http://www.w3.org/ns/prov#value | - The brush bodies and bristles are preferably formed from a material which will not damage the bore, such as, in the case of the body, aluminum or engineering plastic such as Delrin, which is an acetal resin, and in the case of the bristles, nylon and phosphor/bronze mix, or any other materials that are approved by the manufacturer of the barrel in question.
|
