• I J Production
  9360 San Fernando Rd
• Roscoe Sheet Metal Works
  8508 San Fernando Rd
• Patriot Sheet Metal
  11841 Sheldon St
• L C Sheetmetal
  11134 Arminta St # 205
• Empire Manufacturing Co
  11003 Penrose St
• Dan's Sheet Metal
  11142 Fleetwood St
• Wallace Engineering Co
  11351 Penrose St
• Tee-N-Jay Manufacturer
  9145 Glenoaks Blvd
• Air Transport Manufacturer Co
  11636 Pendleton St
• A C Custom Duct
  10925 Goss St
• Micro Tech Fabrication
  7532 Clybourn Ave
• Utility Sheet Metal
  11324 Tuxford St