1.grow rock wool 2.1.5",3",4",6",9" ... agriculture.The product is especially suitable for industrialized production of vegetables,fruits and flowers.Combined with drop irrigation and other modern ... body and environmental pollution.Fungi and insects are difficult to grow in mineral wool. Product Specifications Length:1200mm Width:200, ... ,70,100,150mm Density:60,80,100kg/m3 agriculture grow rock wool cubes