Founded in 2008, LINGFREE mainly engages in the research and development, production and sales of all kinds of insulating tubes. LINGFREE has a strong R & D team, leading production and test equipment. In the joint efforts of all employees, LINGFREE has obtained many certifications including IATF16949, ISO14001, ISO9001. The company’s main products include: fiberglass tubing, UL heat-shrinkable tubing, new energy heat-shrinkable tubing, double-wall heat-shrinkable tubing with adhesive, Teflon tubing (PTFE), braided retractable mesh tubing, PVC tubing and corrugated tubing.