- Automobile suspension springs, heavy gauge metal, manufacturing [2007]
- Coiled springs, heavy gauge metal, manufacturing [2007]
- Disk and ring springs, heavy gauge metal, manufacturing [2007]
- Flat springs, heavy gauge metal, manufacturing [2007]
- Helical springs, hot wound heavy gauge metal, manufacturing [2007]
- Leaf springs, heavy gauge metal, manufacturing [2007]
- Springs, heavy gauge metal, manufacturing [2007]
- Torsion bar, heavy gauge metal, manufacturing [2007]
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