Hetian jade enjoys the praise of “the world famous jadeâ€. Because of its good texture, Hetian jade seed material is not only prominent in many jade materials, but also the price is high. Skin color is one of the main characteristics of Hetian jade seed material, talk about the classic black skin color of Hetian jade! Xinjiang Hetian jade seed material: Xinjiang Hetian jade seed material, like the geological plate activities like Kunlun Mountain and Himalaya Mountain in China, is extremely rare in the world. Therefore, the Xinjiang Hetian jade raw stone seed material formed by its sports extrusion is famous for its unique, warm, delicate, tough, noble and psychic. Its jade skin is rich in content, black, red and yellow. Sagin, autumn pear, jujube, etc., a lot of colors. The skin color of Xinjiang Hetian jade seed material is formed after the Hetian jade is formed, which is formed by collapsing, colliding, and eroding in the river water and other rocks, which are formed in the appearance or crack of the original jade due to geological action. The husk of jade is accidentally exposed to oxides in water, mud, and the atmosphere, resulting in a variety of skin colors. Classic black leather color: Today, we are discussing and communicating with you about the black skin color of the seeds of Wannian. It is formed because the surface of the jade is broken into iron, manganese and other minerals such as black and dark, and the jade is cracked and loose. The soft, scattered parts, after a long period of slow intrusion, precipitation, and even tens of thousands of years, eventually formed a darker skin color, which is what the fans say, black, classic black skin color. The so-called black skin color refers to the comparison of other skin colors, because the black skin color requires a longer period of precipitation, and the length of time formed by the years, it directly affects the old and cooked level of Hetian jade stone seed. That is to say, the friends often say that Hetian jade material itself is old and familiar, so the oily degree of the black skin color, the delicateness and the sturdyness, the old-fashioned, the old maturity is better than the other skin colors. Black skin color classification: Let's talk about the classification of black skin, because the black skin color is shallow and deep, and the jade friends divide it into two categories, the black smoke of the fume and the black skin of the crow. The black smoke of the fume means that the black color is slightly lighter and slightly brown, between the autumn pear skin color and the pure black skin color. The crow is black and black, no doubt, very image, as black as a crow. The crow skin is pure black, and the smoke oil skin is dark brown. Black skin seed is not as common as brown skin seed, and harder to see on large seeds. The meat of black skin and oily skin is usually very white, but it is very delicate. The chance of black meat is very low. Generally, the value of black skin white meat is very high, but it is high but red skin white meat, mainly because of the yield. Things are rare. FR Jackets has Various multifunctional.for example,Anti-static FR Jackets,anti-UV FR jackets,Anti-Mosquito FR Jackets,Arc Flash FR Jackets Anti-acid and Alkali Jackets and so on. Choose a reliable FR Coverall,FR Jackets,FR Shirts,FR Pants based on the different hazards present at the site.The safety FR long sleeve Jackets can effectively protect your arm,which are widely used in mining minerals, oil, outdoor operations, forestry army and so on. And the FR Jackets are harmless to human body, and do not contain formaldehyde, heavy metal ions and other harmful substances.The FR Jackets has a great quality guarantee.Which has its own laboratory for each piece of cloth after layers of testing and testing.To provide customers with safe and secure FR Jackets. Fr Jackets,Safety Jacket,Work Jacket,Workwear Jacket Xinxiang Xinke Protective Technology Co, Ltd. , https://www.coverallsuits.com