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Among the reputable manufacturers of HDPE spiral tanks, chemical storage tanks, and spiral plastics tanks is Spirall Plastics. We offer our assortment of guaranteed quality at reasonable pricing. Describe Spiral Tank. High density polyethylene (HDPE) and polypropylene (PP) are extruded (in strip form) at 220 degrees Celsius onto a mandrel that is traversing and rotating while preheating. After that, each wrap is placed on top of the one before it to fuse the layers together and create a smooth, seamless cylinder with distinguishing rings around the exterior.
