Q:How is the stone sheet transported?

Stone sheet should be erected when transported by the fixed side of the compartment.

Q:PCB board material how to identify

PCB board material identification, can be carried out from the following four aspects: (1) dimensional stability In addition to pay attention to X, Y axis (fiber direction and horizontal direction), but also pay attention to the Z axis (plate thickness direction), due to thermal expansion and contraction and heating reduction factors easily lead to silver plastic conductor fracture. (2) electrical and water absorption FR-1 is better than FR-1 and XPC in terms of dimensional safety, electrical and water absorption, so that the insulation of the insulator in the absorbent state is reduced, so that the metal is moved under the potential difference. Production of silver through-hole printed circuit board, to use special FR-1 and XPC paper substrate. (3) ductility Copper plating through the copper hole is a continuous crystal, there is a very good ductility, not like silver, carbon ink in the thermal expansion and contraction, easy to interface separation and reduce the conductivity. (4) migration Silver and copper are metal materials, easy to oxidize and restore the phenomenon caused by rust and migration phenomenon, due to the difference in potential, silver than copper in the potential difference between the trend of prone to silver migration (Silver Migration). Circuit board name: circuit boards, PCB board, aluminum plate, high frequency board, thick copper plate, impedance board, PCB, ultra-thin circuit boards, ultra-thin circuit boards, printing (copper etching technology) circuit boards. The circuit board makes the circuit miniaturized and intuitive, which plays an important role in the mass production and optimization of the fixed circuit.

Q:Wood board first-line brand which

Zhangzhou "high-floor card" template good, has been maintained in the country before the quality assurance, we are using their construction companies template, cooperation for more than ten years, really good, you can go to see

Q:Are there any plates of E0 grade?

There are ah, there are E0 eco-board, blockboard also E0 level!

Q:What is the difference between a sunglasses or a sheet of plastic?

Remove the sunglasses lens quality factors, the greatest impact on the price of sunglasses should be brand value-added and material caused by the different costs. Brand value added here is not discussed, this thing in the selection of sunglasses when the wise, can not tell a right and wrong. Then we talk about the material of the sunglasses frame. Compared to other materials, the use of sheet and plastic sunglasses frame on the surface is not see the difference. First of all, the plate frame is a memory function, if you buy the sunglasses mirror legs for you too tight or too loose, then you can adjust the mirror legs, straighten the bend is not a problem, but also inside and outside the bending Adjustment. If it is a plastic material sunglasses frame, a small adjustment does not work, it will automatically change back to the prototype, if a substantial adjustment - it will not change back to the prototype, because it has been broken ... Secondly, from the details, the frame of the frame to wear more comfortable, the basic will not appear discomfort. The plastic frame in addition to the overall structure is relatively stiff, is not conducive to the adjustment, the external paint may also be processed, there will be irritating smell. Finally, the frame of the frame will have steel (think of reinforced concrete, there are wood), durable. Plastic frame it, in addition to plastic or plastic, can be used to know how long days. So look at the appearance, you can not find the difference between these sunglasses.

Q:Comparison of fire and water of the plate

Solid wood is the best, the most upscale

Q:The most commonly used gas shielded welding consumables are certainly different from the material being welded. The silicon content and the manganese content in the wire are higher than those in the material. And the sulfur content inside the wire is much lower than the sulfur content of the base material being welded. Here, the role of silicon manganese is in the welding arc, in the welding bath for deoxidation of the chemical reaction, the other silicon manganese infiltration of the base metal can also improve the strength and plastic of the weld metal.

The most commonly used gas shielded welding consumables are certainly different from the material being welded. The silicon content and the manganese content in the wire are higher than those in the material. And the sulfur content inside the wire is much lower than the sulfur content of the base material being welded. Here, the role of silicon manganese is in the welding arc, in the welding bath for deoxidation of the chemical reaction, the other silicon manganese infiltration of the base metal can also improve the strength and plastic of the weld metal. ??? The metallographic structure of the weld metal is generally a coarse tissue, which is very poor in mechanical properties. The structure of the base material to be welded is generally fibrous forged tissue, and the mechanical properties are much better. However, due to the weld metal into a certain amount of silicon manganese, the strength of plastic have been improved. In general, the weld metal is much better mechanical than the low carbon steel base metal.

Q:How to color the plate after carving

First with the newspaper accounted for four weeks, leaving the word, you can spray later.

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:You can elaborate on this year, a variety of stainless steel products such as: tube, plate, the other, the tax rebate rate is how much

Stainless steel sheet export tax rebate rate is generally 9 or 13 points, specifically the goods and their exports HS code.