When selecting mahogany furniture, pay attention to the following points when checking the quality:
1. Pay attention to the materials used in mahogany furniture.
The surface materials of mahogany furniture, such as the legs of tables, chairs and cabinets, require hardwoods, such as ash, eucalyptus, etc., which are relatively strong and can bear the weight, while other materials can be used for internal materials. The thickness of the large wardrobe legs is required to be 2.5 cm. When it is too thick, it is awkward and thin and easy to bend and deform. Kitchen and bathroom cabinets cannot be made of fiberboard, but should be made of plywood. Because the fiberboard has strong water absorption, it will expand and damage when exposed to water. The table in the restaurant should be washable. It was found that the wood had insect eyes and foaming, indicating that the drying was thorough. Such furniture could not be bought, and the insects would bite more and more. After checking the surface, open the door and the drawer door to see if there is any decay in the inner material. You can lick it with your fingernails. If you break in, it means that the inner material is decaying. After opening the door, smell it with your nose. If it is nose, glare, or tears, it means that the formaldehyde content in the glue is too high and it will be harmful to the human body.
2, should pay attention to whether the structure of the furniture is firm, whether the junction of the blink of an eye is tight.
Small pieces of furniture, such as chairs, stools, hangers, etc., can be dragged on the concrete floor when picking, gently falling and falling, the sound is crisp, indicating that the quality is good; if the sound is dumb, there is a murmur of slap, It shows that the blinking is not tightly combined and the structure is not strong. The table and table can be shaken by hand to see if it is stable. The sofa can sit and sit, shake it, if it is not active, it will not be soft, no sound, indicating that the structure of the blink is relatively firm. If you sit on it, you will twist and twist, and if you shake it, it will be nailed. It won't take long. Square tables, tables, chairs and other legs should have four triangular clips to fix the function. If not, the time may be long when it is long. When you choose, you can look over the table and chairs, and the cloth chair can be touched by hand.
3, should pay attention to the level of wood moisture.
The water content is high and the wood is easily warped and deformed. The moisture content of the furniture should not exceed 12%. When the general consumer buys, there is no test instrument. You can take the method of hand touch and touch the bottom of the furniture or the place where there is no paint inside. If it feels moist, then the moisture content is at least More than 50% can't be used at all. Another way is to sprinkle a little water on the unpainted wood. If the sputum is slow or not, the moisture content is high. The selected wood-based panels have deformation, edge expansion, and intermediate unevenness, indicating that the water absorption rate of the board is too high.
4. When selecting furniture, check whether the four feet of the furniture are level.
This point is flat on the ground and I know that some furniture has only three legs to land. Look at the desktop is straight, can not bow back or collapsed. The table top is raised, the glass plate is placed on it, and the table top is recessed, and the glass plate is crushed by a pressure. Pay attention to the inspection of the cabinet door. The slit of the drawer should not be too large. It should be straight and straight, and the door should not sag.
5, the choice of veneer furniture, whether it is veneer veneer, PVC or pre-painted paper, should pay attention to whether the skin is flat, with or without bulging, foaming, patchwork.
Look at the light when you check it, and don't see it when you don't. The ash veneer veneer furniture is relatively damaged, generally only used for two years. In the case of wood veneers, the veneered veneers are better than the chopped ones. The way to identify the two is to look at the pattern of the wood. The wood texture of the cut veneer is straight and dense, and the veneered veneer pattern is curved and sparse. Particleboard veneer furniture, the ground part must be edged, and the edge banding will absorb moisture, swell and damage. Generally, the corners of the veneer furniture are easy to be tilted up. When picking, you can buckle the corners by hand. If you buckle it up, it means there is a problem with the glue.
6, should pay attention to the edge of the furniture, whether the edge is flat, strict.
The edge is not flat, indicating that the inner material is wet, and the seal will fall off in a few days. The edge banding should also be rounded and not straight at right angles. The edges sealed with wood strips tend to get wet or crack. The furniture inlaid with the plywood is nailed with nails. It is necessary to pay attention to whether the nails are flat and whether the color of the nails is consistent with other places. Usually the nail hole is sealed with putty. Pay attention to whether the putty is bulging. If it is bulged, it will not work. Slowly, the putty will fall out from the inside.
7. Choose furniture with mirrors, such as dressing table, mirror, and dressing mirror. Pay attention to the photo and see if the mirror is deformed. Check if there is lining paper and backboard at the back of the mirror. If the board is unqualified, no paper will be used, otherwise the mercury will be worn away.
8. The paint part of the furniture should be smooth, flat, not sloppy, wrinkle-free, and flawless.
The corners are not straight at right angles, and the straight edges are prone to slag and paint. There should also be a paint inside the door of the furniture, without the paint board being easy to bend and not beautiful.
9, should pay attention to the furniture hardware accessories installation is complete, rules, and reasonable.
For example, check that the door lock switch is not working; the big cabinet should be equipped with three dark hinges, and some can only be installed with two; the upper three silks, some cut corners, only one screw, will be used .
10. When selecting sofas and soft beds, it should be noted that the surface should be flat, but not high and low; soft and hard should be uniform, but not hard, soft; hardness should be moderate, neither too hard nor flexible It can't be too soft, it will fall down when you sit.
The method of selection is to sit down and squat with your hand, the flatness is not flat, and the spring does not ring. If the spring laying is unreasonable, causing the spring to bite the spring, it will make a sound. Secondly, it should also pay attention to whether the quilting has broken wires or jumpers, and whether the density of the corner teeth is reasonable.
These raw materials are for pharma, mainly for human pharma, such as melbine (DMBG)
It is basic material for many fields, such as pharma, chemical, dying, washing industry, and manufacture industry. Some are powder, some granule, some flake, some crystalline. As below pictures:
It is identified by purity and granule/block size, purity is the main identified method. It is used in different products as per its size.
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