Learn More: www.busthermo.com/product/van-refrigeration-unit/ As one of the top 3 transport refrigeration unit manufacturers in China, TKT HVAC is committed to producing environmentally friendly, reliable and efficient van refrigeration unit (truck refrigeration unit) for the global market. Contribute to the world’s cold chain industry. TKT began to develop and produce transportation refrigeration units in 1998, and has now developed into a comprehensive company integrating R&D, production and sales. TKT HVAC has a variety of product quality certifications, such as IATF 16949, ISO9001 2015, and ISO 14001 quality control certifications.