MST Bar USA MST Bar USA Search | Advanced Search | New Members | Coupons and Discounts | All Categories   Other >> Division 03 - Concrete >> 03 20 00 Concrete Reinforcing MST Bar USA 3330 N Black Butte CtNampa, ID 83687 | map | directions Trevor Brown (208) 315-9303 Visit Site New Member Connect With Us MST Bar is structural GFRP for flatwork or vertical applications. Yes, we go vertical! Member Since: 2025