Wear Resistant steel Pipe Material: carbon steel (seam & seamless) Qualification: ISO9001, API, CE Introduction: From inside to outside, Inner ... pipeline.4.long working life. Size:from 50-1500 mmStyle:seamless bend & seam bendThickness:SCH20, SCH30, SCH40, STD, SCH80, SCH100. SCH120 ... DIN 2617JIS B2311 JIS B2312 JIS B2313Material:carbon steel (seam & seamless)Qualification: ISO9001, API, CE,