In addition, flaps (51) are preferably provided on the recess former to prevent the sides of the attachment head (34) from being encased in the concrete.

另外，挡板(51)优选地设置在凹部成形器上，从而避免附连头部(34)的侧面埋入混凝土中。

youdao

In addition, flaps (51) are preferably provided on the recess former to prevent the sides of the attachment head (34) from being encased in the concrete.

另外，挡板(51)优选地设置在凹部成形器上，从而避免附连头部(34)的侧面埋入混凝土中。

youdao