Ceramic Ball, Alumina Ball, Random Packing manufacturer / supplier in China, offering 10*7 Red, White, Black, Blue, Green, Yellow, Orange Mbbr Bio Media Chips, 25*7mm Low Clogging, High Efficiency Mbbr Biochips Variety of Styles Colors, 10*7 mm Long-Lasting, High-Performance Mbbr Bio Media for Wastewater and so on.