Steel structure roof support tin foil cotton wire mesh how to pull?
Tied to the wire, both sides can be dragged, and here dragged to the fixed, and then the other side of the people dragged again ~ ~ so reciprocating ~ ~
In the fixed wire, pull over again after pulling 45 degrees from another corner, so cross into a cross after the ~ ~ is generally a person, the ground a person put steel wire ~ ~ two people on the roof, with a rope
There are two kinds of Rafa, the first cross-network, the general spacing of 200-250MM, from the gable and the eaves of the corners of the corner, the cable 45 degrees, in the edge of the purlin with self-tapping screws first hit by the scale,
