At three o'clock in the afternoon, the sun shines through the floor-to-ceiling windows of the "Jiangxin" wood art studio, casting diamond-shaped light spots on the smooth polished walnut boards. Song Leiketon was wearing non-slip gloves and was carefully trimming the angle of a dovetail with a falcon's-eye chisel. The moment the chisel blade came into contact with the wood, there was a crisp "click" sound without any unnecessary wood chips flying - this is the "steadiness and ruthlessness" gained through twenty years of skill.