... and research.High quality products, first-class service, and competitive price.Top supplier of SINOPEC, CNPC and other US ... for oil and gas drilling. Product Name 30/50 competitive price ceramic proppant used for hydraulic fracturingBrandWanliBulk DensityLow DensityProduction ... please ask us! High Conductivity Ceramic Proppant 30/50 competitive price ceramic proppant used for hydraulic fracturing