Zhang Longxiang, a 53-year-old Kung-fu master from China, has developed an 'Iron Sand Palm' through 20 years of rigorous practice. By striking bags filled with sand and steel balls over 6,000 times daily since 1998, his right palm has thickened to 8 cm. This extreme conditioning has increased his bone density and striking power, allowing him to break bricks and drive nails into wood using only his bare hands. He frequently demonstrates these feats in martial arts exhibitions. https://sambad.in/special/the-iron-fist-of-a-kung-fu-master-11998998 #creator program