Zhangjiagang Hesheng CNC Machine Tool Manufacturing Co.,LTD. was established in 1984,specialized in manufactureing pipe bending machine,metal circual saw machine,pipe end forming machine,chamfering machine, welding machine and so on.HeSheng company occupies 20,000 square meters,construction area of 15,000 square meters.The three-dimensional cnc bendging machine developed by HeSheng is advanced than other Chinese factories.Hesheng is the leader of drafting the Chinese standard of cnc pipe bending machine(GB/T28763-2012),released in November 2012,and implemented in May 2013.HeSheng is also the leader of Chinese standard of pipe bending machine safety (GB28760-2012) ,released in November 2012,and implemented in October 2013.HeSheng is also the leader of occupation standard of pipe end forming machine (JB/T12773-2015) ,released in October 2015,and implemented in March 2016.