A53, A106A/B/C, API5L, API5CT Seamless Carbon Steel Pipe Manufacturer At Shanghai ShengQiu Materials Co., Ltd, we produce, stock & supply seamless A53B, A106A/B/C,API 5L and API5CT carbon steel pipes, helping you get the materials you need to complete your project on time and on budget. Simply put, we have the right grade and size to meet your special requirements and quality standards. All of our products can be customized to your specific requirements with our services that include threading, coating, and fabricating. Just tell us about your unique project needs, and we’ll ensure you get the precise seamless carbon pipe you demand. As a carbon steel seamless pipe supplier, we have the ideal product for your application. Industrial Applications Carbon steel seamless pipe is used in a range of applications in all different industries, including petrochemical, environmental, energy, and more. Thanks to more than 10 years of combined experience and v...