Color:ADblack/rustHighQuality:Theabsorptionisverygood:0.18%.acidresistance,abrasionresistanceandmodulusofruptureareverygood.Ifwecanreachanaggrement,wecanshowyouourtestreports.ThisslateisgoodqualitythatpassedGB/T18600-2009,ASTM,BSEN12326-1-2004.Ithasfollowingcharacters--***oothsurface--nicecolor--non-fading--durable.Ourabsorptionis0.18%,muchlowerthanGB/TR1grade0.25%andASTM0.25%.Abrasionresistanceis0.016mmthatismuchlowerthanGB/T0.35mmandASTM0.38mm.Size:Mackerelscale;Pentagon;Tectangle;425:400mmx250mm420:400mmx200mm430:400mmx300mmspecificati***thatweexportmostareabove.630:600mmx300mm520:500mmx200mm330:300mmx300mm320:300mmx200mmThickness:4-9mmwecanguaranteethehighqualityandthepromptdelivery.)