001a-Air pressure spray gun, sunflower oill, thermometer, heating kettle, pellets
001b-Vacuum Tumbler
001-Preparation before the test
002-Pouring oil into heating kettle
003-Pouring oil into Vacuum Tumbler
004-Heating the oil up to 70℃.
005a-spraying oill
006-Spraying over, ready to Pull vacuum for the tumbler.
007a-Pulling vacuum
007b-Pulling vacuum up to -0.1M
008-Stat to rolling at 5：12PM
009-Rolling over at 5：27PM
010a-Final effect comparison
010-Final effect comparison
