宜兴市凯润进出口有限公司
Yixing KaiRun IMP and EXP Co., LTD as a professional techonology team which invite the expert Mr Gu Zhandong of oil fracturing propellant in China for techonology director .We research ,develop,supervise the manufacture of low and medium density ceramic proppant in 20/40,30/50 and 40/70 for summit trading partners in America.
Website：www.product-yx.com