Three-sealing screws to pull the middle by a single screw connection composed of two symmetrical end of the screw, bolt seal manufacturers, intermediate plate and two screws with a sealing stopper, sealing bolt, end with a fastening screw and configure the fastening nut thread. Two intermediate screw with en externally threaded end of the screw after one end of the connector has a screw thread and middle facades template removal, sealing the screw handle on the outer wall. In the concrete pouring is completed, after removal of the template can be recovered from the end of the screw to remove the middle screw embedded within the wall, recovered end of the screw and screw with a new intermediate can be reused. Three-sealing screw in the construction process engineering concrete pouring more and more applications, the sealing of many kinds of screw, bolt seal three sections, but also three-sealing screw proportion of applications increasing. Why are more and more three-sealing screw favored construction ones? This is one of many reasons: as good after the construction of the wall effect, easy to operate, but the construction side one of the more important point is to save money. Nanjing Kuang Jian Building Material Co., mainly produces sealing screw, to pull the screw (wall screw, double screw), coarse teeth screw, T3 screw, GB screws and other construction screws. We promised that all screws are the new steel production, quality and security, no worries! Three sections of sealing bolts, sealing bolt, Peter Kennedy building materials provided by Peter Kennedy Building Material Co., Ltd. Nanjing. Nanjing Kuang Jian Building Materials Co. (www.njwklg.com) strong, credible, in Nanjing of metal building materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Peter Kennedy building materials into the brilliant and you work for a better future!