plastic pin

基本解释

Will link directly into the screw plastic pin plug twist the hole, pin plug stress, and wall body firmly with inflation.
将螺钉连结工件直接拧入塑料销塞的孔内，销塞受力膨胀，与墙体牢固结合。
Plastic bulge pin screws when using, first the plastic pin into the wall play good hole, can not have the bare surface part.
塑料胀销螺钉使用时，先将塑料销塞入墙上打好的孔内，面层不能有裸露部分。
In the test group(248 nuts), silicone impression material was injected into the root canal, and the prepared plastic pin was added to get post model.
试验组通过根管内注入硅橡胶并插入预成胶针制取根管根面精确印模，技工室完成铸造桩核。