our professional biz products
1.seamless steel pipe: carbon steel, alloyed steel and stainless steel, OD 6mm to 720mm, carry our ASTM, API 5L, API 5CT ,DIN,JIS,GOST,CE,EN,standard.
2.welded steel pipe: round pipe, Sq pipe
3. pipe fittings: flange, elbow, tee, ends cap.etc
4. process as sample and requirements