Quartz rock, black quartz block and slabs, kaolin clay, lumps, charcoal, wood pulp.
1. Ground water level: more than 1.5m. 2. Soil texture: permeablility or breathability good loam and sand soil, avoid clay, harden, ventilation adverse soil. 3. PH of soil, 6-7.5 is the best, 5-8.9 is acceptable. 4. Good irrigation and drainage systerm will be better. 5. Elevation up to 2000m is acceptable
French clay roof tiles, roman style French clay roof tiles, flat style French clay roof tiles, plate French clay roof tiles, canal French clay roof tiles.
