<p>mandatory. Compared to E0 to E1 one order of magnitude of the gap, E2 to E1 is a difference of 3.5 orders of magnitude. There is a large difference in the numerical </p>
<p>values between levels, which is one of the major reasons why the industry considers unscientific standards. According to reports, the domestic sheet metal industry enterprises, the current are in the pursuit of 'zero formaldehyde' technology, formaldehyde emission is small or negligible, Europe, Japan, etc. are also in this regard, </p>
<p>especially the big brands pay more attention to health and environmental indicators . 'E2 grade board is actually more suitable for outdoor and packaging applications, excluding also within the reasonable,' said Lee, a well-known flooring manufacturer, said so, 'The removal of this level, in fact, the formaldehyde emission requirements of </p>
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