... Customized requests accepted3) sectional form:round,equal,rectangle3) Round Section,Dimensions (mm): from 10 to 400;1/2"in ... 12i"n4) Equal Section,10x10mm-400x400mm5) Rectangle Section,20x10mm-400x200mm6) Seamless pipe: from 1in to 12in7) Galvanized pipe,pre galvanized hot rolled ... or hot dipped Zinc-coated for round,equal,rectangle steel pipe.8) Producing: Seamless,Welded,hot rolled,pre glavanized ...