Grease trap fabrication: Viking Plastics specialises in grease trap fabrication. This video shows a plastic extrusion welder in operation. The welder is showing set temperature. In tank fabrications, the main use of extrusion welding is to weld the bases and tops. In certain applications, the body panels are also welded using this technique. Extrusion welding is used where it is necessary to produce large volume, homogeneous seams … Continued