compressed colour wool felt mateerial:wool thickness:0.5-60mm density:0. ... certification:ISO;BV Name(ISO9001:2008 and BV certification)compressed colour wool feltDensity0.14-0.44g/cm3Specification1m x 1m or in ... ,electronechanical,spaceflight, aviation,shipping,training,auto,metallurgy,chemical industry,cement,machine tool,printing, weave, etc. It is used as pressurize,dustproof ...