On Early July 2017, The general manager of Hebei Zeal Fiberglass materials go to and visit steel plants customers in Tangshan city together with director of North district of China. Our company had got asking for application of the fire sleeves, and give professional advice for high temperature sleeve and heat insulation sleeve performance. Customers made high valuate of our fire retardant sleeve, fire fabric and heat proof materials, and committed to fire sleeve Velcro, high temperature insulation sleeve is extended to a wider area.