mechanic

The shoring machine invented by Mr. Duong Quoc Thai can handle the work of 33 workers, every day the machine can be banked, reinforced 10,000 meters of rice fields.

With only basic tools instead of specialized ones, there were no drills, hoses or sharpening tools, but Emile Leray built a two-wheeled vehicle just by screwing the parts together.

An Indonesian man uses scrap metal to make his own rehabilitation arm.

Fiberbot is a very special