There are three ways to twist the barbed rope: positive twist, reverse twist, positive and negative twist.

There are two kinds of electrochemical protection. One is to connect a piece of metal that is slightly more vivid than it. For example, ships and ships will be inlaid with zinc blocks. The second is to connect the negative terminal of the power supply, such as iron and steel river locks are often connected with the negative terminal of the power supply, through the negative terminal. Its methods include: metal cover film such as electroplating, organic coating such as paint, transformation layer such as orchid or black, new elements to change the metal structure.

Galvanized hexagonal net is a galvanized metal wire mesh, the shape of the grid is hexagonal.

Materials of qualified quality should be kept marked for reference when used. In order to remove the surface film, surface inclusion and other defects on the surface of the large roll galvanized wire on the surface of the sedimentary layer to the local surface, it can be found and treated by conventional technology; Excess foam is caused by soaps and saponable fatty surfactants being brought into the tank. Moderate foam formation rates may be harmless. The presence of small homogeneous particles of large denier in the tank can stabilize the foam layer, but the accumulation of too many solid particles can cause explosion.

And if you are concerned with style, one thing to keep in mind is that once fitted to a pillow or a mattress, sateen and percale cotton bedding keep its shape much better, resulting in a cleaner wrinkle-free look.