... Steel Group, Hunan Great Steel Pipe Co.,Ltd( Sub-company), our main products is SMLS, SSAW, offshore steel pipe, galvanized steel pipe, channel steel, angle steel, ... ERW , LSAW Pipe etc. Contact me: ellie()hnssd()com ... , wall thickness:1.25mm to 50mm,ERW steel pipe/ HFI steel pipe: OD:1/8 inch to 24 inch, ...