... 2. Normal Wall Thickness:3mm-60mm3. Normal Length:3m-12m4. Producing Standard:American ASTM, API 5L, API 5CT, Japanese JIS, German ... -2000, ISO14000, ISO18000, API 5L certificate11. Picturesour producing flow chart, our factory, production line, inspecting equipments, our products are listed below for ... :Please See below. ASTM A210 Low Alloy Seamless Boiler Steel Pipe