Q:How to identify the millennium boat plate

It is not what you do, belong to the cultural relics, and need archaeologists identification.

Q:What is the quality of the board?

The use of environmental protection factor is higher than the national standard 18mm thickness of the MDF, and the new PVC louver with a different from the general wood sheet of polymer synthetic fiber material, after 200 degrees Celsius Of the high temperature without plastic hot veneer treatment, completely free formaldehyde release. This ensures that the production of "starting line" to reduce the formaldehyde content. The quality of formaldehyde is less than or equal to 1.5mg / L, and the formaldehyde content of E1 grade (national mandatory standard) is less than or equal to 1.5mg / L

Q:Recently visit the building materials market to buy furniture, see a lot of style almost furniture, the price is a lot of difference, ask the sales staff is what the reasons, sales staff said that this is because the furniture used by the plate is not the same, the production of furniture made of plate than the domestic plate production Furniture, some of my puzzled, is the quality of imports of sheet metal production is really better than the quality of domestic furniture produced by the plate ok ...

To tell the truth, as the industry, do not recommend you to buy plate furniture: because the domestic legislation lag, on the interior decoration and furniture so far only 12 mandatory standards, are still 1999-2002 issued by the family indoor environmental standards so far Or to borrow the "public environmental quality standards" in the chemical standards. The so-called plate furniture, are used MDF, moisture board, hot pressed melamine film after the production of furniture. As a result of the domestic density board and moisture board a large number of urea-formaldehyde glue as a binder, the formaldehyde and other harmful gases volatile particularly large, although the sheet can barely meet the 2002 national ban on artificial board emission standards, but made of furniture Accumulated emissions will certainly cause the air harmful substances greatly exceeded, especially the use of melamine (melamine itself is environmentally friendly materials, as long as do not eat is harmless) hot-pressed film, the instantaneous emissions less, but the emission time is longer, Have a greater impact on health! So you want to buy plate furniture, then the best to buy imported sheet (imported sheet are generally used as non-urea formaldehyde adhesive as a binder), but then come back, imported plate plate furniture prices are generally more expensive than might as well find a good point The company does it yourself.

Q:How to distinguish between true and false Qingdao wood of the big core board

Go to Qingdao wood shop to buy, E0 level white willow face is very good, no seam and radiation Tong, grasping nails, no deformation,

Q:What are the PCBs

1) Flame Retardant Copper Foil Epoxy E Glass Fiber Cloth Laminate and Its Adhesive Sheet Material. IPC4101 detailed specification number 21; Tg ≥ 100 ℃; 2) Flame Retardant Copper Foil Modified or Unmodified Epoxy E Fiberglass Laminated Laminate and Bonding Sheet Material. IPC4101 detailed specification number 24; Tg 150 ° C to 200 ° C; 3) Flame Retardant Copper Foil Epoxy / PPO Glass Cloth Laminate and Its Adhesive Sheet Material. IPC4101 detailed specification number 25; Tg 150 ° C to 200 ° C; 4) flame retardant copper clad modified or unmodified epoxy glass cloth laminate and its adhesive sheet material. IPC4101 detailed specification number 26; Tg 170 ℃ ~ 220 ℃; 5) Flame Retardant Copper Foil Epoxy E Glass Cloth Laminate (for Catalytic Addition). IPC4101 detailed specification number 82; Tg N / A;

Q:Plate market, the so-called eight major markets, where is the four bases?

Shandong Province Linyi City Yitang Town Hebei left the village of China's four northern man-made board production base in Jiangsu Pizhou and Suqian, Shandong Linyi and Heze Shandong Linyi, and a few Yintang town plate manufacturers,

Q:Meet the ROHS standard PCB board which?

Pmma is in line with the ROSH standard but you are not used

Q:Furniture board specifications four eight feet What is the meaning of that: 4 * 8

Consistent with the specifications of stainless steel plate, 4 * 8 four eight feet that is 1219mm * 2438mm It is 1 meter 22 * 2m 44

Q:Teach you how to distinguish between the quality of integrated ceiling plate?

First look at the material of aluminum magnesium plate, you can roughly visualize the thickness of the integrated ceiling plate, the household is generally around 0.7mm, the project for. The international so now that the provisions, if beyond this range, then it is not the material of magnesium aluminum, because the cost of magnesium and aluminum is relatively high, some businesses in order to seek profits to participate in the other, other materials, but this , Then the flexibility of the plate on the big discount.

Q:What is the difference between A-board and B-board?

Class A grade B refers to the quality of the wood (density, formaldehyde content, etc.) grade. According to the corresponding standard, according to the wood of the knots, decay, insects, cracks and blunt edges (if the logs are no such defects), bending, twill (or twist) and other defects of varying degrees. The quality of the wood (density, formaldehyde content, etc.) as a class A, B and other different grades.