Rock wool density:70k--120k width:600mm,1000mm,1200mm length:1000mm--4000mm thickness:25mm-150mm Rock woolRock wool felt is a kind of soft and roll product made of rock wool felt wrapped by wire netting, stainless steel netting or glass wire, mainly used for heat preservation of large-caliber pipeline, storage tank, large-scale equipment, irregular thing, valve and pipe joint. Iron wire and ...