Profile: Octal Steel Group specializes in providing API 5L line pipes, carbon & alloy pipe, casing & tubing, steel plate, sucker rods, steel pipe fittings, valves, and equipment for oil and gas industries. Corrosion resistant alloy (CRA) clad pipe and lined pipe applied for the anti-corrosion environment, they have been considered as a new material in the oil and gas pipeline systems. Since they are two kinds of steel material that composite together through bonding processes. (Inner pipe material with expensive stainless or alloy steel, which we called CRA layer. Outer pipe with carbon steel pipe that standards in API 5L or ASTM A106/A53 etc.) CRA clad and lined pipe generally used in petroleum industries for special working conditions.