- Upstone Materials (State College, PA)
- Roller Operator - HRI Inc., - State College, PA 1 Company: HRI Location: State College Country: USA Type of Contract: Seasonal Publication Date: Aug 7, 2025 HRI, ... in highways, airports, water, sewer, treatment plants, bridges, and paving . HRI also has six asphalt plants. Our company...give a finished surface to cooling asphalt. + Drive machine in successive overlapping passes over surfaces to be… more