... floor tile,wall tile,stair,step etc.5.Standard size:30.5x30.5cm,40x40cm,60x60cm,thickness: ... Payment term:T/T, L/C,Western union G654 Standard Test Data:Density (lbs/cf) ---173.55Water Absorption ... % ---0.19Compressive Strength(Wet) PSI ----19,20.00Compressive Strength(Dry) PSI------16,820.00Flexural Strength ... Strength (Dry) PSI---------2,247.50 outdoor black granite floor tiles