<![CDATA[EC21 Product Catalogs - Shape Purlin Machine]]> <![CDATA[Silo Stiffener Machine / Silo Leg Machine / Silo Omega Shape Purlin Machine / Silo Column Machine]]> <![CDATA[C Purlin Roll Forming Machine]]> <![CDATA[Concrete Extruder Machine]]> <![CDATA[ASTM A106 A36 SS400 S235jr Hot Rolled C Channel Steel Purlins]]>