... DIN17175-79, DIN2440, DIN2448, JISG3452-54, JISG3461-88 Outside diameter: 1/2"-48"Pipe thickness: SCH5S, SCH10S, SCH20S, SCH20, SCH30, STD, SCH40 ... , SCH60, XS, SCH80, SCH100, SCH140, SCH160, XXS Material: API 5L, Gr. A ... ASTM A500, API 2B, DIN 1626, ISO559, ISO3183.1/2, KS4602, GB/T911.1/2, SY/T5037, SY/T 5040 Surface treatment: Natural, ...