two personal, if afraid of inaccurate, you can smell that is sure. 2, surface wear-resisting degree: use sand paper no. 180 (sand paper thickness, no big problem) composite timber cladding , the same person, with the same strength and method of continuous friction in the same part of the floor back and forth, 50 times.
No 3 oxidation 2 aluminium floor, wood grain paper it will probably get badly damaged condition. 46, the floor of wear-resisting paper surface basic won't have serious scratches best composite floor panel tile ; 38 g grams or more wear-resisting paper, surface have different degree of wear and tear.
bibulous ply expands rate: sawing approximation to the size of the alternative model, serial number, into the boiling water, 5 to 8 minutes. Out and compare them on the edge of the degree of inflation Restore deck surfacing . Best beforehand with micrometer, measure model of the thickness of the measuring point, make a mark.