Since our founding, DHF has been focused on applications using induction heating. It currently has businesses in six domains: the Pipe Division, Surface Treatment Division, Equipment Division, Reinforcing Steel Bar Division, Bi-met Division, and Plant Engineering Division.
Pipe Division
- Bending
- Steel pipe bending, small-radius pipe bending, thick-wall pipe bending, shaped steel bending, and special materials bending technologies
- Lining
- Inner, outer, and inner-outer combined polyethylene linings, other rust/corrosion preventing coatings
- Prefabrication
- Prefabrication of piping materials, piping design
- Official Demand
- (Piping materials, products for repair) Flexible pipe (DHF-Y joints), non-uniform steel pipe, anti-corrosion steel pipes for water supply and sewerage, inner bands for waterproofing and repairs, leak testing
Surface Treatment Division
- Heat Treatment
- High/medium-frequency heat treatment/high-frequency hardening.
- Rolls
- Integrated production of rolls/rollers, polishing, and recycling
- Thermal Spray Coating
- Spray coating of rolls and various machine parts
Equipment Division
- Induction heating technologies
- Heating equipment R&D and testing of heating equipment for customized applications
(high-frequency power supply units, slim riser etc.)
- Plant Maintenance Service
- Induction bolt heating, Induction tube shrinking and Induction heating equipment for resin peeling
Reinforcing Steel Bar Division
- Mechanically-coupled rebar
- T-head construction method steel reinforcement bars (rebar).
Bi-met Division
- Composite metal products
- Boiler tubes and panels, bimetal pipes, bimetal cylinders
Plant Engineering Division
- Design
- Design, detailed piping design, piping production design