| 摘要 |
The packaging has an insert (6) with a base (24) and two side wings (22). Each wing has a pair of holes (26). The casing has cut outs (20) corresponding to the holes and the insert base (6) has an opening (38) allowing passage of the threaded end of the joint. A hollow rod (8,10) passes through the cut outs in the casing and insert
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