"Taishi" brand rock wool uses high-quality natural basalt as the main raw material. The raw material is melted at a high temperature of more than 1450℃ in the furnace, and then sprayed into the curing agent and water-repellent agent. The cotton is evenly spread by the pendulum method, and it is made after curing in the curing furnace. Series of products such as rock wool board, rock wool felt, rock wool strip, rock wool tube shell and so on.