Q:Plate Jianxiang E0 and ecological board which is good

This is the concept of two issues, it is recommended that you choose Jianxiang sheet EO ecological board. Ecological board in the industry there are a variety of names, commonly known as a paint-free board and melamine board. The initial name is called melamine board, but because of China's dairy products pollution incident, and later was renamed, the industry collectively referred to as the paint-free board, also called the ecological board, but the ecological board is too general, because many of the eco-friendly sheet can also Called the ecological board, so easy to confuse. EO, E1 is the content of formaldehyde content of sheet metal standard, all kinds of sheet metal formaldehyde emission standards.

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:Jin Lu Li plate quality

Jin Luli plate quality is also OK, cost-effective, although not a first-line brand, no bunny, Moganshan brand big but cost-effective than they are higher, it is recommended to buy!

Q:What plate is hard and light and not expensive?

I only know that there are cars are not broken broken glasses

Q:Computer tables, two kinds of sheet: particleboard / melamine board MDF / fiber board which is better material? Thank you!

Computer table of the plate, it is recommended to choose particleboard / melamine board. It is not recommended to use MDF Reason: 1. The former high environmental protection factor 2, the former moisture resistance is good 3. The former than the latter grip nail force is good, easier to fix.

Q:Circuit board plate classification, distinction between advantages and disadvantages

The main criteria for substrate materials: National standards: China's national standards for substrate materials GB / T4721-47221992 and GB4723-4725-1992, China Taiwan's copper clad plate standard for the CNS standard, is based on the Japanese JIs standard modeled, published in 1983 The International standards: Japan's JIS standards, the United States ASTM, NEMA, MIL, IPc, ANSI, UL standards, the British Bs standards, Germany DIN, VDE standards, France's NFC, UTE standards, Canada CSA standards, Australia's AS Standards, the former Soviet Union's FOCT standards, international IEC standards.

Q:My family's kitchen seven-shaped, the amount is a total of four meters, one meter over the top cabinet, put a hood in the middle. Under normal circumstances if the woodworking need a few fire board? Do you need a few sheets?

Estimated need to fire board 4; panel 2 sheets. ???? 1), the cabinet fire board needs an area of 9.4 square meters (about) including the inside of the partition, the specific area how much (depending on how much), a sheet of 1.22 * 2.44 = 2.97 square meters, estimated the need for fire board (with loss) , Bought four, even the top cabinet came out (these are counted on the table). ?? 2), the door area of about 4 square meters, count down 1.36, the door needs to buy two, but also rich out some of the plate.

Q:Very grateful to xiaokaikaiya, AAA forgot to hide 8, 100 plate _ business; the origin of this issue I elaborate: late this year I ride a motorcycle to go to China, Sichuan, Tibet, the new line, two cars and equipment a total of about 900 I will be equipped with two side boxes and a trunk, the three boxes are 7075 material, a single box with stents are about 8 kg, three boxes a total of about 24 kg, due to The vehicle carrying equipment is too heavy lead to tire wear serious, more than 14,000 km new tire completely worn out, so I want to use the new material to re-create the side box, on the one hand to reduce the weight, but the material strength can not be reduced, because the motorcycle reversing When the side box can be used with the front bumper to form an effective protective space, the protection of the human leg and vehicle protection is very significant! The ??? Do not know whether the above statement is clear, there are problems you can contact.

7075 aluminum alloy is Al-Zn-Mg-Cu super-hard aluminum, 7075 alloy is the late 1940s has been used in the aircraft manufacturing industry, is still widely used in the aviation industry, ultra-high strength deformation of aluminum alloy. It is characterized by good plasticity after solution treatment, good heat treatment strengthening effect, high strength below 150 ℃, and particularly good low temperature strength; poor welding performance; stress corrosion cracking tendency; need to be covered by aluminum or other Protection processing use. Two - stage aging can improve the ability of alloy to resist stress corrosion cracking. In the annealing and quenching state of the plastic slightly lower than the same state of 2A12. Slightly better than 7A04, sheet static fatigue. Notch sensitive, stress corrosion performance is better than 7A04, of which 7075T651 state is particularly top grade, known as aluminum The best products, high strength, far better than soft steel. This alloy has good mechanical properties and anodic reaction, is a typical aerospace aluminum alloy material.

Q:How to introduce plate-type furniture plate?

Furniture: solid wood furniture and sheet metal furniture. Soft furniture and stainless steel do not say. Plate furniture are: medium density fiberboard or particleboard they are made of glue and cold pressed from. Surface paste veneer, trimethine ammonia kraft paper, brush paint. ?? To the mall to buy a furniture are generally divided into two kinds: 1 is made of medium density fiberboard .2 is made of particleboard. (Granular wood pressed from the system)

Q:The difference between plate and wire

The difference between the plate and the wire is the difference between the size of the material and the difference between the use: Wire is a diameter of 5-22mm hot rolled round steel or equivalent of this section of shaped steel. Due to wire rod in the form of delivery, it is also known as the wire rod. Wire section circumference is very small, the common product specifications diameter of 5-13mm. According to the different rolling mill can be divided into high-speed wire (high line) and ordinary wire (ordinary line) two. Wire is generally made of ordinary carbon steel and high quality carbon steel. In accordance with the distribution of different types of steel and use, wire, including ordinary low-carbon steel hot-rolled disc, high-quality carbon steel wire rod, carbon wire rod, quenched and tempered wire rod, wire rope with wire rod, As well as stainless steel wire rods and so on. The plates are usually made of standard-sized flat rectangular building material panels for wall, ceiling or floor components. Also refers to the forging, rolling or casting made of metal plate. Divided into thin plate, medium plate, thick plate, special thick plate, usually made of standard size flat rectangular building material board. Plate product shape flat, thick and thick ratio, the unit volume of the surface area is also great This shape features to bring its use on the characteristics: (1) large surface area, so inclusive capacity, in the chemical industry, containers, construction, metal products, metal structures, etc. have been widely used; (2) can be arbitrarily tailored, bending, stamping, welding, made of various product components, the use of flexible and convenient, in the automotive, aviation, shipbuilding and tractor manufacturing and other departments occupy an extremely important position; (3) can be bent, welded into various types of complex sections of steel, steel, large I-beam, channel and other structural parts, it is called "universal steel."