https://www.gwh-firesleeve.com Beijing Great Pack Materials Co., Ltd is located in Beijing city. The main products: high temperature resistant sleeves, fire sleeves, fire resistant casing, heat resistant sleeve, fireproof casing. Here, aviation, railway transportation is very convenient. Companies adhere to the quality as the center, take the customer satisfaction as the eternal pursuit. The company is equipped with advanced detection equipment, set up a dedicated R & D department, the quality of implementation of the whole process control, and the full implementation of ISO quality system demonstration standard of a series. At present the company's main products have passed SGS environmental protection materials certification as well as the United States UL Electrical Certification and other related quality certification.