Sun Gang tests the strength of a model wooden-arch bridge he made by putting his weight on it in his workshop in Dingxi, Gansu province. ZHANG WENJING/XINHUA Gansu woodworker passes the art of ...

LANZHOU, July 2 (Xinhua) -- Woodworker Sun Gang has spent most of his life learning and preserving the traditional mortise-tenon joint structure technique, widely found in ancient Chinese buildings ...

The “mortise” is the recess where the tenon goes. It can be cut by hand with a mallet and mortising chisel, or mechanically ...