Compared with the naked eye observation outdoor composite fences in johor , should be in color, the color is, grain clarity, scar section is clear, natural and easy, very solid wood. Second, check the stand or fall of aggrandizement floor base material, good aggrandizement floor base material should be high density wood fiber board how thick is composite decks , density between 0.83-0.95 g/cm2, has a good stability.
Macroscopic observation comparison should be pure color, soft hard moderate, no peculiar smell. 3, check the stand or fall of aggrandizement floor moistureproof layer install a masonite composite interior door , good aggrandizement floor moistureproof layer can prevent the floor deformation, warping, good moisture-proof thermal and sound insulation effect.
Macroscopic observation should be fine workmanship, quality of a material is solid, colour is pure. Four, inspection of laminate flooring formaldehyde content of high and low, open the moistureproof layer decorative wood plastic board fencing , aggrandizement floor base material, nose to smell smell of stimulus, levels of formaldehyde.