So far forever has already had many sucessful cases for hardening and tempering line, such as sucker rod hardening and tempering line, round bar hardening and tempering line, casing pipe hardening and tempering line, plate hardening and tempering line etc.

Hardening and tempering line features
1.Brand: forever
2.Power: 100-8000kw
3.Material: bar, pipe, rod, plate, tube
4.Feeding type: roller conveyor, continuous feeding
5.Heating way: magnetic induction heating

Hardening and tempering line advantage
1.Igbt technology, high conversion efficiency;
2.Energy saving 15%-30% compared to scr/kgps technology, much more efficient than gas-fired and coal-fired method, 100% start-up success rate;
3.Perfect and complete protection functions, increasing machine's reliability and stability
4.No special foundations required, low operating cost, easy operation
5.Modular design, ease of maintaining and repairing

1. Why forever
Quality is our culeture. Forever put this ideal into every lines and circuit. 
2. How many years it can work
Many factors, usually 8-10years, depends on your operation, cooling water, maintenance. Etc
3. How many days we got the spare parts
Usually send out in 1-2days