... Steel Pipe Features: 1. Description: API Pipe, API 5L pipe, API 5L, oil pipe, line pipe, steel pipe, steel line pipe, API ... Type: 1) Seamless Steel Pipe, 2) Seamed/Welded Steel Pipe: ERW Steel Pipe, Spiral Steel Pipe 4. Material: Carbon Steel ... , BS, EN, GB, API 6. Productive Technology: Hoe rolling, Cold rolling, Cold drawing 7. Surface Treatment: Polishing, Pickling, Antiseptic, Abrasive blasting ...