TTT

metal pipes and metal pipe fittings, including horizontal upset forgings, mechanical press forgings, hydraulic press extrusions, and alloy and carbon steel nuclear-grade pipe fittings; and engineered metal products for use in the oil, gas, and chemical industries, consisting of hinged closures, T-bolt closures, yoke closures, swivel ring flanges, expander flanges, insulated joints, transition joints, lap joint stub ends, flexible steel and closures for pressure testing of piping assemblies, baffle plates, elbows, crosses, anchor forgings, flued heads, and in-line pipe assembly components in the nature of removable, metal frame, non-magnifying sight glass windows for viewing of chemical, mechanical or thermal process operations