Lingfree company was established in 2008, mainly engaged in research and development, production and sales of various insulating bushings. more than 10 years of steady development, with the joint efforts of all employees, the company has successively obtained IATF16949 automotive quality management system, ISO14001 environmental management system, ISO9001 Quality management system certification. In December 2018, it successfully won the honorary title of "National High-tech Enterprise" Main products include: New Energy Heat Shrinkable Tube, UL Heat Shrinkable Tube, Silicone Fiber Glass Sleeve, PTFE TUBE, Double Wall Rubber Tube, Silicone Rubber Tube, etc. The product has passed UL, CSA safety certification. At the same time, all products comply with EU RoHS 2.0 and REACH test reports.