蛭石
Vermiculite is divided into two products: expanded vermiculite and vermiculite ore. Expanded vermiculite is roasted at high temperature, which has the characteristics of non-toxicity and sterility, and can achieve the functions of ventilation, moisture retention and PH adjustment in gardening.
White vermiculite in 1-3mm 2-4mm 3-6mm 5-8mm 20-40mesh 40-60mesh and other specifications is divided into 1-3mm 3-6mm 5-8mm 10-40mesh 40-60mesh and other specifications, and you choose the quality.