... , 120mesh, 150mesh, 0.1-1mm, 0.5-1.5mm1-2mm, 2-4mm3-6mm 4-8mm Horticultural Perlite: 1-2mm, 2-4mm, 1-4mm ,3-5mm.4 ... as insulating layer in transporting liquid oxygen and hydrogen.It can be sused to filter liquor,oil,medicine,food and dirty water ... as catalyst in explosives.It can be used to absorb floating oil.It canbe used in agriculture and gardening to improve the soil and ...