รายละเอียดตัวอย่าง

The diagram demontrates the production of bricks. Overall, the illustration consists of seven stages. Beginning with digging clay and ending with packaging bricks and contribution. Regarding the first three stages. Initial, clays are dug by digger and convey into roller. Subsequently, use metal grid to eliminate impurities. In the next stage, clean clay are mixed with sand and water. Next, clay are molded to make bricks, ready for the next stage. At the following stage, bricks are dried in the sun over 24 to 48 hours. Then, put bricks into kiln, the bricks are fired at temparatures 200 to 980 degrees and 870 to 1300 degrees. After, the bricks are packaged and contributed to use.