Wool shockproof felt: 

This product uses imported wool as raw material, after screening, mixing, cleaning, carbonization drying, after mechanical treatment, wool paved into a network, and then the flat machine rub bad, ramming felt, fleece, press equal a set of traditional process produced. Shockproof wool felt production requirements are very high, and ramming felt a two processing felt density and cross force, so that the production of felt level off uniformity, good adhesion performance, tight texture, not easy to loose, good resilience. Such products are usually used in anti-shock sealed environment, such as the defense military missile precision components shockproof, aircraft instrumentation shockproof, metallurgical machinery shockproof, printing machinery shockproof, shipping shockproof and so on!

http://www.shanhefeltproducts.com/