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More questions.1. The panel company can request the certification mark. It or not, on behalf of the panel. It or to other information more. You scholar, disturbing me (our is only imported materials from China. But does not produce the material. That is used to produce on the part of the cut. And assemble into the wall package).2. In the certification mark, there are other, introduce again. With a purpose. Want to leave it comes to guarantee the quality of material used. The properties of the sheet, take off, like environment clean, let a box, etc.3. Operations for certification. It takes about a month.4. Cost, there will be a part of.
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