oil well casing pipe 1.OD:114.3-508.4mm 2. ... API N80, API L80, API ... oil well casing pipeThickness1.24-100mmOuter diameter114.3-508.4mmApplicationOil,gas,water and other liquid transportation or constructionStandardGB ... , API, Mill Test CertificateMain marketUSA, Canada, Turkey,Europe,Asia.and so onDelivery time7-30 days ,according to the quantityQualityNo.1Productivity2500 ...