Brievenbussen Features: 1) Low water absorption 2) Hard with excellent weather durability 3) Popular colored Brievenbussen Features:1) Material:bluestone2) Colors: blue3) Dimensions: as per client's requirement4) Density: 2.8g/cm35) Finishing: natural split, sawn, grounded, honed, bush-hammered,pineappled and ice-flowered6) Usage: widely used in building's construction and decoration ...