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https://www.dconproduct.com/wp-content/uploads/2020/07/DSC04428-retouch-เสาสายไฟฟ้า-พื้น.jpg16201080Dcon prestressed planks have a cross section like a board and the appearance of the top surface plank is rough, not smooth like the bottom surface. In order to improve the adhesion to concrete topcoat, Dcon prestressed planks have width 35 centimeters, thick 5 centimeters and length not over 5 centimeters and use 4 millimeters […]