● Energy saving and environmental protection: the inner wall is smooth, the wind resistance is small, the sealing performance is good, the energy consumption is reduced, and it is nontoxic, odorless and has no volatile medium, which is harmless to human body.

● Economical and convenient: it can be made on site, which greatly shortens the construction period of users, reduces the investment cost and is convenient and simple to install.

● Fire-proof and flame-retardant: magnesium oxychloride cement and glass fiber cloth are compounded, which is non-combustible and fire-proof.

● Wide adaptability: resistant to acid, alkali, salt and other corrosion, able to adapt to different climatic conditions and have a service life of more than 20 years.

● Applicable fields: air supply, exhaust and smoke exhaust pipes for hotels, shopping malls, textiles, chemical fibers, petrochemicals, machinery manufacturing, instruments, electronics, medicine, tobacco, food, medical care, warehousing, office buildings, subways, civil air defense, basements and other projects.