1.Seamless steel pipe: od: 13.72mm-914mm, wt: 1.25mm to 100mm Cold-drawn: à-114.3mm, hot-rolled: 114.3-406mm, expanded: 406-914mm 2. Erw steel pipe: od: 21.34mm-660mm, wt: 1.65mm to 25mm 3. Lsaw steel pipe: od: 406mm-1625mm, wt: 8mm to 65mm 4. Ssaw steel pipe: od: 219mm to 3120mm, wt: 3mm to 25mm 5. Stainless steel pipe: od: 6.0mm-830mm, wt: 1.0mm-24mm 6. Hollow section steel pipe: square/retangular/roun 1.Seamless steel pipe: od: 13.72mm-914mm, wt: 1.25mm to 100mm Cold-drawn: -114.3mm, hot-rolled: 114.3-406mm, expanded: 406-914mm 2. Erw steel pipe: od: 21.34mm-660mm, wt: 1.65mm to 25mm 3. Lsaw steel pipe: od: 406mm-1625mm, wt: 8mm to 65mm 4. Ssaw steel pipe: od: 219mm to 3120mm, wt: 3mm to 25mm 5. Stainless steel pipe: od: 6.0mm-830mm, wt: 1.0mm-24mm 6. Hollow section steel pipe: square/retangular/roun