... . 1.Applicationwidely used for Power plants, chemical plants, oil refineries, steel mills, paper mills, mechanic plants, cement plants, municipal engineering, sewage ... etc.2. Type & Marks3.Form of columns 4.Standard specializations and sizeNotes:1.Carbon steel's size is in front of the ... spacing:mainly four kinds as 1000,1200,1500,2000mm.4.Steel tube's size:subject to the design drawings confirmed by ...