Agate identification method:
1. Transparency: True agate transparency is not as good as synthetic, slightly chaotic, and some can see natural water lines or "clouds", while synthetic agate has good transparency and is as transparent as glass balls.
2. Process quality: The production process of high quality high agate is strict and advanced, so the surface brightness is good, the setting is firm, the circumference is positive, no scratches or cracks.
3. Level: Water agate is the most precious variety in agate, characterized by a closed cavity in the agate containing water.
4. Weight: True agate jewelry is heavier than synthetic agate jewelry.
5. Temperature: True agate is warm in winter and cool in summer, while artificial agate changes with the outside temperature. It also becomes hot in the heat of the day, and it cools in the cold. How to choose agate jewelry? First, choose the color according to your favorite. Red agate jewelry is the most expensive. If you choose agate necklace, you should pay attention to the color of each bead. There is no mottle, the size of the beads should be appropriate, and the finish should be good. Then, lift the necklace to see if it is vertical, and whether each bead is hanging on a line. If the necklace is bent, it means that some of the beads are biased and the processing technique is rough.
6. Color: The true agate color is bright and bright, and the color and light of the fake agate are both worse. The contrast between the two is more obvious. The natural red agate is well-defined in color and the strips are very visible. Careful observation reveals densely arranged small red spots at the red strips. Most of the fake agate smokers made of stone imitation have a petal-shaped pattern at the bottom, which is a "chrysanthemum bottom"; while the dyed blue agate is bright and uniform, giving a false feeling.
7. Texture: The fake agate is mostly imitation of stone, which is softer than the real agate. The jade can be traced on the fake agate, but the real thing can not be drawn. On the surface, there are few flaws in the real agate, and there are more inferior qualities.
PVDF as its name implies, it is the use of PVDF as a coating material on the surface of the Aluminum Coil.PVDF is a kind of polyimylidene fluoride material. PVDF material is widly used on aluminum composite panel, Aluminum Sheet,aluminum honeycomb panel,Aluminum Ceiling, roof,pop-top can and electronic products. This material leads to maintenance and anti-corrosion.PVDF coated aluminum is the most popular aluminum product nowadays.
PVDF aluminum coil is level,beautiful,good quality,stability and environmental protection.
Usage of PVDF aluminum products:
Architectural aspect(like window blinds,roll-up door,garage door,rainshed,rain gutter)
Electronics and electronical equipment(like electrical panel,computer cabinet)
Others: solar reflector,blast pipe,furniture and electrical lighting.
Color Coated Aluminum Coil,Color Coated Aluminum Roofing Coil,PVDF Coated Aluminum Roofing Coil,PE Coated Aluminum Roofing Coil
Henan Everwin Trade Co., Ltd. , http://www.ewaluminium.com