... -proof, waterproof, mold-proof, smooth without holes, oil-resistance, chemical resistance, wear-resistance Scope ... lotCharacteristics CharacteristicsDust-proof, waterproof, mold-proof, smooth without holes, oil-resistance, chemical resistance, wear-resistance, press resistance, ... force(grade)≤1Impact resistance(1kg/100cm)Coating without flaw, exfoliation, transformation obviouslyBonding strength/ Mpa ...