1. Wuxi Daqiao Heavy Industry – Produces heavy-duty straightening machines for bars and tubes. Website: http://www.daqiaoheavy.com

  2. Suzhou Ming Zhong Machinery – Specializes in leveling and straightening equipment for coil processing. Website: http://www.mzfeeder.com

  3. JIER (Jinan No.2 Machine Tool) – Offers straightening presses for various applications. Website: http://www.jiermt.com

  4. Nantong Metalforming Equipment – Produces hydraulic straightening machines. Website: http://www.ntmetalforming.com

  5. Jiangsu Yangli Group – Manufacturer of straightening and leveling equipment. Website: http://www.yangli.com

  6. Wuxi Weite Machinery – Specializes in straightening machines for pipes and tubes. Website: http://www.weitepress.com

  7. Shandong Sanyi Heavy Industry – Produces straightening presses for metal forming. Website: http://www.sanyihj.com

  8. Tianjin Tianduan Press – Manufacturer of hydraulic straightening machines. Website: http://www.tianduan.com

  9. Hefei Metalforming Machine Tool – Offers straightening equipment for sheet metal. Website: http://www.hfpress.com

  10. Shanghai Heavy Machinery Plant – Specializes in heavy straightening equipment. Website: http://www.shmp.com.cn