square steel pipe Feature Dimensions 10 x 10mm - 600 x 600mm Thickness 0.6 - 25mm Length 1-12m or as request Steel grade Q195, Q215, Q235, Fe310, Fe360, St33, St37-2, SS330, SS400,....
Founded in 1958, Changsha Exploration Machinery Factory ( Abbr. as Changtan Machinery or Changtan) , is subordinate to Hunan Bureau of Geology and Mineral Exploration and Development, and a member of....