The purchase of wood

Wood planks are frequently used materials in home improvement. Due to various factors, these different quality sheets are also prone to a series of problems due to the user's unfamiliarity with the materials. When purchasing this kind of board, be sure to see its lines and lines clearly. Generally, it is best not to have a broken pattern, otherwise the effect of furniture and doors is not so good, provided that it is 1/4 of the board. And there are broken lines at 3/4, this board may be useful, after all, a large piece of wood is not impossible to cut, but it is generally best not to choose.

Plywood purchase

Plywood

1, pick the wood grain. When purchasing multiple pieces of plywood, plywood with a wood grain and similar color should be selected.

2. There must be no dead festival or patches on the front;

3. The number of horny sections (live joints) is less than 5, and the area is less than 15 square millimeters;

4. There is no obvious discoloration and color difference; there is no dense hairline cracking phenomenon and more than 200 mm × 0.5 mm cracks;

5, less than 5 holes with diameter less than 2mm

6. Resin sac with a length of 15 mm, less than 4 black squashes per square metre, and less than 4 resin per square metre with a length of l50 mm and a width of 10 mm.

Fiberboard purchase

Fibreboard

Fiberboard is made of wood or vegetable fiber as the main raw material, mechanically separated into monomer fibers, added with additives to form slabs, and then combined into artificial boards by hot pressing or adhesives. The thickness is mainly 3, 4 and 5 mm. Since the fiberboard has been treated with water repellent, its hygroscopicity is smaller than that of wood, and its shape stability and antibacterial property are all better.

1, the thickness is uniform, the board surface is smooth, smooth, no stains, water stains, adhesive tracks. The surface of the board is fine, strong, and free from burrs.

2, low moisture content, moisture absorption.

3, can hit the board surface by hand, the sound is crisp and sweet, uniform fiberboard quality is better. If the sound is boring, you may have problems with loose glue.

Blockboard (large core board) purchase

Blockboard

Blockboards are made of small wooden strips of varying lengths and are made up of two or more layers of plywood or other decorative panels, which are then pressed. The core board is commonly used for pine, cassia, eucalyptus, eucalyptus and other wood.

Blockboard purchase

1, Blockboard is divided into one, two, three and so on. Directly decorated panels, should use a first board, only as a floor with the third-class board available.

2. Select a plate with a smooth surface, a small section, and a small number of skins.

3. Check the quality and density of the veneer of the core board from the side or after sawing.

4. One side of the big core board must be a whole board, and only one patch is allowed on the other side. In addition, the surface of the large core board must be dry and clean.

5, choose blockboard must choose the machine puzzle, do not use hand-board.

6. Observe whether there is any glue or putty in the surrounding area.

7. Sharply tap the surface with a sharp-nosed device and listen to whether the sound is different. If there is a change in the sound, there will be hollow inside.

8. When purchasing in bulk, check the quality inspection documents and quality inspection certificates.

Buy three strokes

When consumers purchase, they can “see two smells and three knocks”:

"Look at" is to look at the level of formaldehyde emission, E1 grade formaldehyde emission should be less than 1.5mg/L, E2 grade formaldehyde emission should be less than 5.0mg/L;

"Two smells" are commodities that do not select irritating odors;

“Three-knock” means that when the board is knocked on, the product with sound is not empty.

Sliding Turnstile Gate

Sliding Turnstile Gate features:
1. With fault self-checking and logic judgment functions, sliding barrier gate is convenient for users to maintain and function debugging.
2. Mechanical and infrared dual anti-pinch function, when the arm is blocked in the process of resetting, RFID sliding turnstile gate will automatically stop or rebound, and send out an alarm signal at the same time.
3. Multi-mode alarm function, including illegal intrusion, anti-intrusion, trailing, passing overtime alarm, etc.
4. Anti-shock function, when the AB sliding Boarding Gate opening signal is not received, the stop arm is automatically locked or alarmed.
5. Reverse intrusion closes the alarm function. When someone intrudes from the reverse direction after swiping the card in the forward direction, the flap will be quickly closed and an alarm will be issued.
6. Flexible traffic indication function, high-brightness indicator light and retractable barrier gate humanized prompt function, make the channel more distinctive.

Sliding Barrier Gate,Rfid Sliding Turnstile Gate,Ab Sliding Boarding Gate,Retractable Barrier Gate

Guangdong Zecheng Intelligent Technology Co., Ltd , https://www.szzcsecurity.com