Nanjing hai rui rock wool insulation materials sales Co., Ltd. Welcome friends from all walks of life come to visit, guidance and business negotiation. Centrifugal glass wool (products), the annual output of 30000 tons of rock wool (products) production lines, product quality is stable, strong technical force. The glass wool, rock wool products have both passed ISO9001-2000 quality system certification, rock wool products through the China classification society (CCS) certification factory. "Steel peak" brand GF series centrifugal glass wool, mineral (rock) cotton products - forming mat, plank, insulation shell products, such as light density, low thermal conductivity, high temperature resistance, heat insulation, sound insulation, flame retardant, antifreezing as one of the characteristics, widely used in petroleum chemical industry, metallurgy, electric power, transportation, shipbuilding and other industries insulation, heat insulation, sound insulation engineering.