So far forever has already had many sucessful cases for pipe heat treatment line, such as , ¸20-60 pipe heat treatment line, , ¸60-110 pipe heat treatment line, , ¸150 pipe heat treatment line, , ¸200 pipe heat treatment line etc. Pipe heat treatment line features 1.Materail suitable: stainless steel, seamless steel, welded pipe 2.Pipe diameter:, ¸20-500mm 3.Pipe thickness:2-60mm 4.Process: quenching, tempering, annealing, solution treatment Pipe heat treatment line advantages 1.Igbt (siemens) technology,  high conversion efficiency; energy saving 15%-30% ,  compared to scr/kgps technology 2.Much more efficient than gas-fired and coal-fired method 3.100% start-up success rate; power factor > 95% 4.Perfect and complete protection functions,  increasing machine's reliability & stability 5.No special foundations required,  low operating cost,  easy operation 6.Modular design,  ease of maintaining and repairing 7.Energy saving, environmental protection, low pollution level 8.Easy operation, can be equipment with plc controller 9.Strict supplier management system and iso9001-2008 quality management system guarantee high quality of each equipment. 1.Customized services, producing machines according to customer's requirement.