| 摘要 |
(57) An apparatus for forming electrofusion saddle couplers includes a first longitudinally movable rotatable arm (24), a second rotatable arm (32) movable perpendicularly to the first arm, and an operating head (42) attached to the second arm which includes a laser-heated heat grooving device for creating a groove in the saddle coupler and a wire inserting device for inserting a resistance heating wire (21) into the groove (46).
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