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An average commercial steel building costs between $16 and $20 per square foot, including building package (I-Beams, purlins, girts etc.) , delivery, foundation and the cost of construction.

Wrought iron was actually "wrought" (i.e. worked or hammered) into bars and has been used as a construction material for thousands of years. Most metals used for construction purposes are alloys. For example, steel is an alloy with iron and carbon being the primary elements.

It was not until 1880 that an era of construction based on reliable mild steel began. By that date the quality of steels being produced had become reasonably consistent. The Home Insurance Building, completed in 1885, was the first to use skeleton frame construction, relying on its masonry cladding for stability.

Supply chain management software (SCM) is used in the management of producing a product from raw materials through the various manufacturing and distribution processes until the product ends up in the hands of the consumer. Supply chain planning software helps organizations manage and replenish their inventory through sales and demand forecast

The goal of good supply chain management is to keep inventories down while ensuring that the speed of flow of the product through the chain is optimized. Supply chain management is the whole vertical management of a product from the extraction of its raw materials to its sale to the consumer.