The Function and Application of Anchor Bolt in External Wall Insulation
Hollow bricks, low strength building materials and aerated concrete: rotary drilling methods can only be used to avoid drilling too large and to prevent the hollow bricks between the internal cavity of the ribs broken
Knock-type nylon anchor installation A, drilling method; rotating drilling; no impact or hammering; use of impact drill for the impact of small but the impact of the frequency of large rotating drilling; the use of hammer for impact, but the impact frequency Small rotary drilling; building materials to decide what kind of drilling method; here can be divided into two categories of ordinary solid building materials: the use of impact drilling and hammer drilling method
