Monarch Machine 412 S Oregon Ave Pasco, WA 99301 Phone : (509) 547-7753 Business Category Welding Machine Shops Steel Products Steel Stainless Steel Structural Fabricated Structural Metal Industrial & Commercial Machinery & Equipment Monarch Machine & Tool Co Inc 410 S Oregon Ave Pasco, WA 99301 Phone : (509) 547-7753 Monarch Machine & Tool Co Inc Business Category Machine Shops Machine Foundations