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Sphere Pigs
Knapp manufactures a comprehensive line of pipeline spheres that includes inflatable, solid cast urethane, solid cast with foam core, and a urethane foam series.
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![Metal Pig Catalogs](../Images/Catalogs/KPP-Metal_Pigs-p1-06.png) |
Metal Mandrel Pigs
Knapp manufactures a full line of metal mandrel pigs with replaceable urethane discs, cups and wire brushes.
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