fine thread drywall screws

The physical methods mainly include manual rust removal and mechanical rust removal, chemical rust removal is generally the use of pickling method, practical application, usually according to the appearance of the workpiece rust status and different post-treatment process, choose different rust removal methods, among which pickling rust cleaning is more commonly used. That is, the iron and steel workpiece with oxide skin or rust is etched in the acid lotion, mainly to remove the oxide or rust layer on the surface of the steel.

Great attention should be paid to pickling of large rolls of galvanized wire. Acid is highly corrosive. Therefore, when adding acid, the acid must be poured into the water, and it is along the wall of the cylinder, and not thrown down at once, so as not to cause splashing. Remember the order of acid pouring, acid into water rather than water into acid, water into acid will cause splashing and boiling, when pouring acid must wear protective glasses, beside must ensure that there are no non-professional people watching, so as not to cause some acid splashing danger.

2. When there are channels, ponds, lakes and other natural barriers on the side of the road, there is no need to worry about people and animals entering and illegally occupying the road land.

2, galvanized wire mesh molding sheet storage ground should be flat, according to the symbolic requirements of the accumulation of regular, height should not exceed 2M, and away from heat sources, avoid exposure.

By paying attention to these installation guidelines, you can help ensure the air conditioning system in the bus functions efficiently, providing passengers with a comfortable and pleasant ride.