Carbon Steel Seamless Pipe Grade:10# 20# 45# 16Mn Q195 Q235 Q345 etc. Material: Carbon Steel Pipes customized sizes availabl Carbon Steel Seamless PipeManufacturing Method: Cold Drawn ,Cold Rolled ,Hot rolled ,ERW ,SAW ,EFW ,LASWApplied for: Structural pipe ,fluid pipe ,boiler pipe ,drill pipe ,oil and gas ,hydraulic pipe and so on. Carbon Steel Seamless Pipe