| 出生地 |
Shanxi China (Mainland) |
| 牌子的名字 |
KAIDA |
| 模式的数量 |
Diameter 500mm-800mm |
| 材料 |
铁 |
Tested item standad Anti-breaking strength (Mpa)>14 Impact toughness resistance (kg/cm2)>95 Tensile strength (Mpa)>10 Compressive strength (Mpa)>30 Modulus of elasticity(kg/cm2)>1.4*104 Cold-hot resistance measure<0.4 Water-absorption<1.0 Surface treatment Black bitumen coated and hot gavanized Smooth surface and anti-theft