Green painted cold rolled steel strapping 

We produce different kinds of packing steel strapping, like Bluing steel strapping, painting packing belt, primary colors packing steel strapping, galvanized steel strapping, punch steel strapping, ect.
Bluing steel strap is to heat treatment the steels at about 200 degree centigrade and make the steel surface to form a layer of dense ferroferric oxide film. Its main ingredient is ferroferric oxide.
The layer of protective film can prevent iron rusts, before packing, you also can paint a layer of anti-rust oil to prolong the store time.(Dense ferroferric oxide film can film the steel body isolated from air and water, and have the effect of anti rust) In general, they are 3-4 layer of packaging, or we can according to customer requirements for packaging.