Established in 1979, TENGLONG is a professional manufacturer and exporter of many styles of high-grade and top quality ceramic fiber products, fiber glass products, asbestos products, shipping container parts & accessories, gland packing, PTFE products, and sealing gasket & sheet. SUNPASS, as a part of TENGLONG, established in 2006, takes charge of export business for TENGLONG, which also has subsidiaries in H.K.- ECHO INDUSTRY LIMITED.