RailBase This item was sourced on www.MFG.com as one of the items in an RFQ in USA for Direct Extrusion Production of a rail base. Non structural requirement - SideRail_Extrusion.pdf contains two profiles to evaluate - both are solid. Current requirements would be 800 ft of the smaller and 200-250 ft of the larger. There is a tight time line on this and will incentive base price the delivery of these components. Please state all details in the comments box. Part Part Number: NA Material: Aluminium Material Grade: 6063 Technical Specifications Category:Direct Extrusion Dimensions3657.6 x 96.2914 x 28.575 inch Tolerance:0.127Annual Usage:800.0 The following suppliers (machine shops, fabricators, casters, molders, 3D printing, CNC machining, etc.) provide manufacturing services and are members of the MFG.com community. For more information visit http://www.mfg.com. MFG.com performs a 5-point inspection on all engineered parts and RFQs to ensure quality and enhance your quoting experience Direct Extrusion: Direct extrusion is the most common extrusion process. In direct extrusion, the material, usually billet that has been heated to plasticity, is forced through a stationary die by a ram, usually powered by a hydraulic press. Indirect extrusion is an extrusion process in which the material to be extruded, usually billet that has been heated to plasticity, it held stationary while a forming die fixed in a hollow ram, usually powered by a hydraulic press, is moved through it.