API 5L Line Pipe 1. Thickness:6-40mm 2. OD:10-630mm 3. Certificate: ISO9001, API, CE API 5L Line Pipe1. Thickness:6-40mm2. OD:10-630mm3. Certificate: ISO9001, API, CE4. Application: Oil pipe, 5. Package: bundles by steel strip, seaworthy packing, or as customer's requirements API 5L X52 PSL2 Welded Steel Pipe