Ohio Valley Manufacturing specializes in heavy gauge stamping & precision blanking. Since 1999, Ohio Valley Manufacturing has ... developed a diverse customer base within multiple industries, from our Mansfield, OH location. By concentrating on heavy ton, large bed applications we have distinguished ourselves from our competition. Our press sizes range from 250 tons to 4000 tons. Our stamping services enable us to produce manufactured parts up to ½ inch thick, which gives us an advantage in all stamping industries. read more