Knowledge of customer processes, application of products and services to these processes; air separation technologies, cost advantages/disadvantages of these technologies; pipeline system dynamics, operations, restrictions cost factors; pipeline/meter design construction/maintenance; chemical characteristics of oxygen, nitrogen, argon, hydrogen, carbon dioxide, syngas, carbon monoxide, steam and ozone. We own and operate over 2,000 miles of industrial gas pipelines in the U.S. supplying mainly oxygen, nitrogen, hydrogen and syngas in large quantities from multiple production sources to major customers in the chemicals, petrochemicals, refining and steel industries.