- grogfireclaymortarHesatsippinggrogalonedownstairs.Someremotesettlementshaveimposedtheirowngrogbans,andcopedwell;othershavenot.Coatalayeroffinegrogonthebottomtoavoidtheglazerundownandstickonitbeforekilnpacking.Rotarykilncalcinecapitalequipmentcementof...
- 31070