滑行器上部有五条“T”形槽,可用螺钉和螺帽方便地在槽上固定光电门。
There are five is the taxi "T" type screw groove, usable and nuts in filigree conveniently fixed photoelectric door.
滑行器上部有五条“T”形槽,可用螺钉和螺帽方便地在槽上固定光电门。
There are five is the taxi "T" type screw groove, usable and nuts in filigree conveniently fixed photoelectric door.
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