... Bedrooms, Breakfast nooks, wine Cellars, and exterior Applications Chimneys, House facing, Window sills, Patios, and Walkways. culture stone manufactured ... obviously changeFrost resistance--No significant changeBending strength--Average Bending strength for 28 days (Mpa) 3.5 , individual value ... limit--Pass GB 6566-2001, Item 3.2,requirement for class AVolume contraction%≤ 3% Advantage of our culture ...