This product is manufactured by our advanced technology, it is strengthened by aluminum steel wire or glass steel wire, it has many virtues such as light weight, heat-resistant, thermal shock resistance, low hot-melting, good performance of heat protection, acid resistance , stable chemical properties, non-toxic, air-tight, anticorrosion, etc.

it's superior to traditional rock wool, asbestos cloth, etc.

Purpose: Flexible connections between duct pipe and fan.

our company website :www.fireproof-material.com