... -60mm; 3. Length: 3-12m 4. Standard: ASTM, API , JIS, DIN, BS, GB . Normal Out Diameter:6-950mm 2. Normal Wall ... . Producing Standard:American ASTM, API 5L, API 5CT, Japanese JIS, German DIN, Chinese GB/T, BS standard5. Main Material:Carbon Steel & Low ... . ASTM A53, A106, A210 etc; JIS STPG42, G3454, G3456 etc; German St42-2,St45-8, DIN1626, DIN17175 etc; Chinese 20#, Q345 ...