... Black Painted Steel Pipe Size of Steel Pipe:1/2"-48" Packing of Steel Pipe: Bundles ... DIN2440, DIN2448, JISG3452-54, JISG3461-88 Outside diameter: 1/2"-48"Pipe thickness: SCH5S, SCH10S, SCH20S, SCH20, SCH30, ... API 2B, DIN 1626, ISO559, ISO3183.1/2, KS4602, GB/T911.1/2, SY/T5037, SY/T 5040 Surface treatment ... or In bulk End: Bevel or Plain with plastic capOur products are with good quality and reasonable ...