We are Cangzhou Hongyun Alloy-Steel Pipe Co., L based in Cangzhou, China. We are member of TradeKey.com since April, 2014. Our business is related to Hardware & Mechanical Parts industry and we specifically deal in Alloy-steel pipe. Please find our product details below: Alloy-steel pipe The Standard:GB5310-2008 The Material:15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB so on. The Technique:hot-rolled OD:10mm-530mm Thickness:10mm-70mm API oil transportation with spiral steel pipe API oil transportation with spiral steel pipe - Detailed parameters API oil transportation with spiral steel pipe Product introduction: Specifications: Caliber: 159--3020mm Thickness: 4--30mm Mate Thank you for taking time to go through our business profile. If there are any questions, inquiries or comments, please feel free to contact us.