Inquiry (采购产品): piston type grout pump in need of a piston type grout pump for backfilling geothermal drill holes with a betonite mixture. please let me know my options. harold 330-43203270 cell, 330-339-1177 office **** Hidden Message ***** harold simpson simpson 817 w. high ave. new philadelphia, OH 44663 USA Company: simpson heating and cooling Title: owner Phone: 330-432-3270 Fax: 330-339-1188 E-mail: hw@simpsonheating.com **** Hidden Message ***** hw@simpsonheating.com