natrule puff sponge

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natrule puff sponge
Posting date : Feb 12, 2014
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40-
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Make-up sponge material sub-NBR, SBR several oil resistance, water resistance strong good elasticity difficult to deformation Test item Unit Test method Actual number Tensile kpa GB/T 528-1998 200-250 Elongation % / 200-300 Density kg/m3 GB/T 533-1991(0.1±0.05) 150-190 25% compression degree of hardness kpa SAEJ18 25-28 Water-absorptivity % SAEJ18 0.5 Bears the ozone aging experiment / GB/T 7762-2003 Qualified Hardness Hc.. / 7 Test result Qualified The information about product-related for reference only,but not about parameters of finished products !

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