Good day. I am yunus from China. Glad to meetting you from Facebook. We are seamless steel pipe manufacturer. Our factory is in Liaocheng City,Shandong province,China. More than 20 years production experience in seamless pipe area. Our main products cover carbon seamless steel pipes, line pipes, alloy pipes,Titanium alloy pipes,casing pipes and couplings. Our sizes ranges: OD(21.3mm-610mm) *WT(2.5mm-60mm). Standard/Material: ASTM A106/A53 GR.B,API 5L GR.B,ST52,A333GR.6,A335-P11,A335-P12,42CRMO4,TC4 etc... World market: INDIA,KOREA,VIETNAM,TURKEY,EGYPT,COLOMBIA,UAE,FRANCE,BRAZIL ,PAKISTAN,SAUDI ARABIA,IRAN,CHILE... We also really invite you to visit our factory and products in the near time. Awaiting your kind reply with many thanks, All the best.