| 摘要 |
A bracket of a coupling for steel pipes is provided to change shapes of passages to prevent separation of bolts, and to form holes and the passages at the bracket to insert/fix the bolts easily. A bracket(3) of a coupling for steel pipes includes a plurality of holes(4) in which bolts(6) are inserted. The holes are formed with passages(5) connected with rear ends of the bracket. The bolts are inserted along the passages. Shapes of the passages are changed to prevent separation of the bolts and to fix the bolts easily.
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