Name :  Provide lava stone,volcanic ro

Description :  The volcanic biological filter is corrosion resisted, it is inertia, so it never reacts with biological films. 2¡¢Surface¡¯s electric property and hydrophilcity: Volcanic filter¡¯s surface brings positive charge, so it is favorable for the growt h of the

Category :  Machines & Equipments 

Min order quantity :  10000 

Supplied by :  Beijing KaiBiYuan Trading Liability Ltd. Cor.