drywall screws for heavy items

6, barbed rope protection network layout should be according to the road boundary terrain necessary renovation, flat section level set, slope section slope or step set.

Slowly through the axial flow fan or exhaust hole directly discharged to the sand blasting room, so that the power of dust discharge is low. And in the discharge of dust because there is no further treatment, so the discharge of dust will seriously pollute the sandblasting room and the surrounding environment, the health of the site staff will also harm.

Cold plating is a physical treatment method, the zinc is simple and uneven, the amount of zinc is also less than in the corrosion and rust prevention and chemical disposal of hot plating; The amount of hot zinc plating is relatively thick, the surface of the disposal is flat on average, and it is not easy to fall off. A layer of alloy composed of zinc and metal has very strong oxidation ability, and there is a layer of pure zinc on the outside of this layer of alloy, which is why hot plating is thicker and stronger than cold plating. Under the condition of high degree of natural recovery, galvanized hook net can play a very good maintenance effect on the environment, it is not afraid of wind and rain, it is the battle machine in the hook net, much stronger than the dip plastic hook net.