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At this temperature the material becomes highly viscous. Subsequently cold water is injected into the process which causes the material to higher bulk densify. 7178788094934171783-blid-2869291585308035022
เลขเด็ด"ปู่ฤๅษีตาไฟให้โชค"ตามแล้วรวย#16/12/62
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