Hetian jade seed material has always been a very valuable investment worthy of collection, and its appreciation potential is unlimited. In the market, we see a lot of seed materials. In fact, there are not many real seeds. Hetian jade resources are scarce, so many are fake. How to identify Hetian jade seed material? To know the characteristics of Hetian jade seed material in order to identify the authenticity. Hetian jade seed stone 1. The surface of Hetian jade seed stone is skin-colored. These skin colors are washed by rivers for thousands of years and naturally formed by sputum. The ochre will appear in the softer place on the original stone. The color at the crack will It is darker than other places. The color of the seed material is very layered. The skin color of the outer skin and the inner structure is the same. The color on the skin should be deep and shallow. The color of the crack should be from shallow to deep. However, not all of the seeds are skin-colored. Some good seed skins are dotted with little stars, not large areas. 2, the sweat pore structure of the seed material is its most important feature, is a very important point to identify the seed material, the surface of the naturally formed seed material is very fine and smooth, under the magnifying glass can see the small pits with different bumps, these small The pits are very similar to human skin, so they are called sweat pores. These uneven pits not only do not affect the smoothness of the jade, but will make the surface of the seed material look more lustrous. These sweat pores are on the market now. It can also be falsified. Generally, it is a method of using a roller collision. The resulting skin will have a very serious collision, which is not very natural. 3. The skin color of the seed material is very beautiful. The cracking of the seed material is an important identification method. After the collision of the seed material by thousands of years, the cracks of large and small sizes are formed. These cracks do not affect the jade itself. There is no problem, the fake seeds are rarely cracked, and the initial polished surface can be seen. 4, in the color of the seed material and the mountain material is different, the seed material is held in the hand, in normal light or sunlight, the far-sighted, near-looking color system is unchanged, belonging to warm, soft white. The mountain material is seen under normal lighting or daylight. When it is near, the whiteness is normal. When you look far, it feels a little blue, especially when it is put together with the seed sample. When comparing this method, look closer and far. It can be seen that the difference, because this visual method is tried and tested, is a good way to distinguish jade. As long as you know the characteristics of Hetian jade seed material, you can identify Hetian jade seed material well. Today, 80% of Hetian jade counterfeit products are imitation Hetian jade seeds. Therefore, this is a very important place in the identification of Hetian jade. We must understand it well in order to invest better. Silicone Bushing,Silicone Sleeve Bushing,Silicone Rubber Bushing,Rubber Sleeve Bushing Xiamen The Answers Trade Co.,Ltd. , https://www.xmanswerssilicone.com
Silicone Shock Absorber
Nitrile rubber (NBR, Buna-N) grommet provides excellent resistance to petroleum oils as well as mineral and vegetable oil. Nitrile rubber also offers strong resistance to heat aging - often a key advantage over natural rubber.
Rubber Damper, also known as Shock Absorber, Isolator, and NBR grommet, NBR is a unsaturated rubber copolymer with polar unsaturated carbon chains, which is copolymerized by propenenitrile and butadiene, according to propenenitrile content from low to high, the higher the resistance to oils but the lower the resistance to cold. Oil resistance is the greatest advantage of NBR elastomer so it has excellent resistance to petroleum base oils and non-polar solvents but poor resistance to polar oils and polar solvents.
November 23, 2022