| 摘要 |
<p>The galvanized metal hook acts as an auxiliary item in the installation of a four-sided tube to a selective traffic sign board for use by road workers and on outdoor sites. The hook comprises two parts welded to each other. An opening (1) allows the hook easily to be suspended over a round tube in a store. The width allows the hook with its four-sided tube and its selected traffic signboard to be suspended in the same line on the provided round tube. This arrangement constitutes the upper part (A) of the hook. The lower part (B) of the hook has its inside (4) fitted over the four-sided tube (5). The length of the lower part is shorter than the width of the four-sided tube. Both sides of the lower part are provided with two holes (6), which are necessary for fitting the hook to the four-sided tube with its selective traffic sign board.</p> |
