Casting Experts Since 1906
Precision-crafted castings delivered fast—without compromising on strength, accuracy, or reliability.
Castings Plus
From design concept to full-machined parts, learn how Donsco can help you manage your castings supply chain.
Engineering Services
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Other Item
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Manufacturing Services
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Crafted for Excellence
Donsco, Inc. is North America’s leading single source provider of machined iron castings, and has been in continuous operation for more than 100 years.

Briefing
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Processing
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Finishing
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Why Choose Us
Satisfied Clients Speak Out
“(Pickup at Building 7) – Receiving door and dock are behind the building. Was greeted by very pleasant and upbeat staff member, who went above and beyond to help. Because it was not a full truckload, I was asked where I wanted the product placed, and it was quickly and precisely placed as requested. I was in and out in a matter of minutes, and could not be happier. Thank you – I appreciate it.”