SUNPASS GROUP consists of three companies. Tenglong Sealing, founded in 1979, specializes in production and development of sealing&thermal insulation products. Top Sealing provides one-stop sealing products&thermal insulation products. Sunpass International provides one-stop accessories and services for ISO tank container. Based on the sealing field, serves multiple industries at home and abroad, including:power, chemical, metallurgy, mining, papermaking, sugar refining, marine, tank and others.