Pedro nakhunsombat about the reacted materialWhen there is an external force do. awatdu Grand , the mechanical properties tensile strength, hardness, ability to.Stretch, flexibility, strength, etc.
The a feature about the reaction of the material when a force from outside to acting on material mechanical properties are the strength, hardness, capable of stretching, flexibility, toughness. etc.
To qualify for the features about the reaction of material when there is a strong external angel made its material mechanical properties improved its strength, hardness, your ability to elongation, flexibility, tough, etc.