Generally consistent with the requirements of domestic production technology and raw materials qualified through the heart of black cardboard base price in the price of 7500 yuan -8500 yuan float. Usually in the sales process, domestic specifications are based on these two standards, of course, because the needs of production and thus need to build special specifications, but must be ordered to produce technical standards through the heart of black cardboard manufacturer, single-sided or double-sided black cardboard through the heart through the heart of black cardboard are basically no abnormal color appears, unless it is their own ink and raw materials used in jams failing leads to large differences in color, through the heart of black material itself jams nourish, good memory properties of paper itself later after repeated bending can still restore, and after swabbing through the heart of the single-sided black cardboard smooth surface, good stiffness. And in recent years, because to meet international environmental requirements, export demand through the heart of black cardboard generally have to go through FSC certification of our paperboard products from Switzerland Silver Star softwood pulp production, the use of three environmentally friendly ink dye, (PH ) pH is "neutral", no pollution, a hundred percent recyclable processing, black cardboard on both sides of the color without color, high-Po black cardboard, paper torn in the middle level is black, paper smooth and delicate, good folding, surface roughness good stiffness, no white spots, black uniformity and so on. Do not think that the black card is simply covered with a layer of black paper jam up. Usually people call black cardboard, all refer to the double-sided black cardboard through the heart. This black card is from the inside to the outside is black. In the manufacture of pulp process has been tuned color, black cardboard factory, after forming black. Alternatively, single-sided through the heart of black cardboard, one-sided black card, also known as duplex black card. Duplex black cardboard is black on one side, a special cardboard jams side. Usually used for mounted, make use of the box. This is why the other side of the black card to be inflicted on one side rough cardboard, easy pasting. Million Nobuhiro Paper (Figure) _ _ on one side through the heart of black cardboard and paperboard GAOBU provided by the Dongguan City billion letter macro Paper Limited. Dongguan City billion Nobuhiro Paper Co., Ltd. (www.yixinhong.com) strong, credible, a jam in Dongguan, Guangdong and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead billion letters macro paper and you hand in hand into the brilliant, for a better future!