concrete consistently high flow, the concrete does not separate, is not hollow, reducing the problem of blocking needles. post-tension concrete prestressed concrete system provides compressive strength more than 240 ksc to pull the wire rope within 3 days.

- concrete wincon mok 828: 2546 use prefabricated prestressing pc wire of wire 4 lines, 5 lines, 6 lines, 7 lines. prestressed concrete slab stomach smooth wincon mok 828: 2546 size 1.00 meters, 1.50 meters, 2.00 meters, 2.50 meters, 3.00 meters, 3.50 meters, 4.00 meters, 4.50 meters, 5.00 meters