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 pipeThe Standard:GB5310-2008The Material:15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB so on.The Technique:hot-rolledOD:10mm-530mmThickness:10mm-70mmAPI oil transportation with spiral steel pipeAPI oil transportation with spiral steel pipe - Detailed parametersAPI oil transportation with spiral steel pipeProduct introduction:Specifications:Caliber: 159--3020mm Thickness: 4--30mmMateThank you for taking time to go through our business profile. If there are any questions, inquiries or comments, please feel free to contact us.