| 摘要 |
PURPOSE: A T-shaped socket is provided to connect the center of a pillar-shaped pipe to the pillar-shaped pipe at right angles for equipping a bed for growing plants. CONSTITUTION: A T-shaped socket(1) comprises a horizontal pipe(5) which passes through the socket to connect a bolt(4) to a hole bolting. In the hole where a vertical bar(6) passes through, a horizontal tube is inserted and fixed. |
