Trine is proudly owned by Harloff Manufacturing Company

Visit us at www.hmcmi.com

is committed to exceeding customers' expectations by focusing on our customers' requirements. Utilizing state-of-the-art equipment and applying our quality management system, we complete the job right on time, the first time and every time.


  • CAD/CAM Design Engineering
  • Die Making
  • In-line and Precision Mitering
  • Welding
  • Notching
  • Stamping
  • Drilling
  • Component Assembly
  • CNC Press Breaking


  • Thicknesses - .015 to .187
  • Finished Lengths -a few inches
    to more than 33 feet


  • Hot and Cold Rolled Steel
  • Hot Dipped and Electro Galvanized
  • Pre-painted Steel
  • Anodized, Pre-painted, Mill Finish Aluminum
  • Stainless Steel (300-400 series),
    Bright Annealed, #3, #4, Polish,
    Mill Finish and Vinyl Coated
  • Solid Brass (lacquered or raw)
  • Copper
  • Tin Plate


  • Appliance
  • Display Manufacturer
  • Kitchen Equipment
  • Laboratory Equipment
  • Light Fixtures
  • Material Handling
  • Metal Doors - Fire, Overhead and Security
  • Storage System Builders
  • Surface Transportation
  • Washroom Equipment


Some of our illustrations represent shapes that are unique to specific industries. Many other shapes can be created from our existing tool sets that can produce your requirements without additional tooling charges. We are constantly adding new shapes to our expanding line of roll formed parts. If you do not see a particular item, please send us your specifications and requirements and we will find a solution to fit your application.