perforated sheet metal patterns

The large roll of galvanized silk should be coated with oil, the fiber core is dipped in oil, and the grease should be able to protect the fiber core from decay and corrosion, the iron wire moistens the fiber, and lubricates the wire rope from the inside. The surface is coated with oil so that all the wire surface in the rope strand is evenly coated with a layer of anti-rust lubricating grease, which is used for the mine rope with friction lifting and mineral water, to be coated with black grease with increased wear and strong water resistance. Other uses are coated with red oil oil with strong film and good rust resistance, and require it to have a thin oil layer, which is easy to keep clean during the operation.

Reverse twist barbed rope: first wrap the barbed wire around the main wire (i.e. a single wire) and then add another wire to twist and weave it into a double strand barbed rope.

Dark green plastic-coated barbed cords are occasionally used on high-speed trains, but they are also used in small quantities.