... :200-3000g/cm3 thickness:1-20mm certification:ISO9001:2008;BV COLORFUL CHEMICAL FIBER(POLYESTER)FELT1)color polyester felt--non-toxic and ... ,spaceflight, aviation,shipping,training,auto,metallurgy,chemical industry,cement,machine tool,printing, weave, etc. It is used as pressurize,dustproof,shockproof ...