Quality :Grade A Certificate:ISO9001:2000 Material: carbon stee ,stainless steel ,forged carbon steel ,alloy Product DescriptionFRD Steel Pipes Steel Pipe Features: 1. Description: API Pipe, API 5L pipe, API 5L, oil pipe, line pipe, steel pipe, steel line pipe, API 5ct 2. Specification: 1) OD: Seamless 1/2"-24" DN15-DN600, Welded up to 80" DN2500 2) Wall Thickness: Sch5S-Sch160, STD, XS, XXS 3. ...