... 2, heartinsulation, 3,firmly, 4,durable, 5,fireproof 6,anti-freezing. 7,alkali and acid resistant, 8,high ... wholesale market 4,large farming trade market. 5,farm 6,indoor PE equipment. Product comparison FunctionOrdinarycement tileAsbestosshingleColor steel tileEcological ... ≤3≤0.66 This machine belongs to fully automatic boards production line, it can produce wallboards ,partition board and decoration ...