A.Its mechanical properties are far more excellent than reinforced steel concrete steel
    bar (JIS G 3112 heteromorphic steel bar).
     ① Tensile intensity is about 2.5~3.0 times higher.
     ② Yield strength is about 5.0~6.0 times higher
     ③ It is economical because about 1/3 of reinforced steel cross section is used under
        same internal destruction force.
     ④ The moment internal force toward external force is improved because steel material
        ratio is less comparable to reinforced steel.
B. Because it is manufactured with same production method as HIBON tension core,
     not only the adhesive power with the concrete is excellent, but it is very easy to use.