... proppant 30/50 low density high pressure resistance, high conductivity, low acid solubility What is ceramic proppant used for?Ceramic proppant are ... can be classified as followed:1. by bulk density:Light density, medium density and high density.2. by compression strength:52MPa (7500psi), 69MPa ( ... Waihuan Road, CBD Zhengzhou, Henan, ChinaNo.08 hydraulic frac sand for oil and gas 30/50 low density