Threeway Steel International Co., Ltd. made by three factories which can produce SMLS, ERW, SSAW, LSAW steel pipe to meet the customers requirements. All of the products we are supplying can reach the international standard like: ASTM, JIS, DIN, EN, API, and BS.

Threeway Steel International Co., Ltd. is a professional supplier of carbon steel pipe used for various fields.
- Carbon Steel Pipe to ASTM and API 5L Specifications
- Seamless, ERW, Spiral weld and DSAW Pipe
- O. D. Coatings, Linings and Field Joint Material
- I. D. Cement Mortar Lining to AWWA specifications
- O. D. Concrete Weight Coating
- Large Diameter DSAW from API 5L X42 to X70
- Pipeline Stringing
- Structural Pipe and Pipe Piling
- Water Well Casing, Plain End and Threaded
- Rolled and Welded Pipe to Size

The range of our products is
1. Seamless steel pipe: OD 1/4 inch-30inch W. T 1.25mm to 50mm,
2. ERW steel pipe OD: 1/2inch-52inch W. T 1.65mm to 25mm
3. SAW steel pipe: 219mm to 3120mm. W.T 3mm to 25mm