Items: 1) The round steel pipe ranges from 7mm up to 88mm, and the thickness is from 0.4mm up to 2.5mm 2) The hollow section (square and rectangular steel pipe) size is from 10mm * 10mm up to 100mm * 100mm,8.7mm*9.5mm to 50mm*100mm, with the thickness from 0.4mm up to 3.0mm 3) The cold rolled steel strips width is from 25mm up to 550mm, and the Thickness is from 0.25mm up to 2.0mm 4) And all above the ERW pipes can be make by Pre-Galvanized pipe my e-mail address is acme8212 at yahoo cn