... 529.6 m2/m3 porosity : 0.9788εHigh efficient type Material: 302,304,304 L, 316,316 L, 317 ... .5 m2/m3 porosity : 0.9839ε shock absorption type Material: 302,304,304 L, 316,316 L, 317 ... : 529.6 m2/m3 porosity : 0.9788ε Material ProducingDemisters Packing Factory Qualification Welcome Inquiry Any inquiry pls ... contact Orange Li,the product which meet your need will be reply by our ...