First, it has been verified by professionals that pure spodumene is colorless, and only green chemicals can be added after the addition of chromium chemicals. Therefore, the natural jade belt does not have green (or blue), it depends on whether there is "mixed in" chromium inside the jade, and the more the "mixed" chromium, the greener the jade. Second, the amount of chromium contained in the ring or other jewellery processed from jadeite obtained from mines or rivers has been fixed. So the green on the jade cannot be alive. However, in some cases, chromium in jade can produce a chemical reaction, which causes a small amount of diffusion of chromium, which is why people think that green is "long". The jadeite that produces green "long" is mainly jadeite with jade necklace, jade bracelet and jadeite brand that are in close contact with the skin. Third, there is a certain temperature in the human body, and it is easy to sweat. The sweat has acid or alkaline components. These components can penetrate into the microcracks of the jade, and some of the components may chemically react with the green chromium ions. The reaction either dissolves the chromium ions that have been consolidated in the jade and produces migration, which makes the green "long" large. In fact, there is no change in the content of green chromium produced in jade, only trace amounts of chromium are diffused or migrated.
"SD" has formed a the unique style of tech and innovation with over 20 years.
Over 20 years growth, the company has cultivated a team of experienced technical and management staff and owned the modern facilities and automatic assembly lines from dyeing, knitting, finishing and deep processing.
Meanwhile, the company always follows the fashion steps, continuously innovates and develops new products, and improves the management and service ability.
The upscale faux fox fur and knitting wool products reach the domestic and international high level. Products have been exported to the United States, Australia, Japan, Russia and Vietnam. In addition, according to the report from international accredited testing institutions, the test of formaldehyde in some products is ND level. The company receives high praise from the international specialists.
The company keeps the spirit of being real, precise, beautiful and innovative, capturing the market with high quality and credit. The products gains the trust and favor from home and abroad customer with high quality and diverstity.
All staff of Shuangda work hard towards automation, intellectualization and informatization. Keep improving the efficiency, promoting craftsman spirit, innovating new products. We are committed to becoming a more specialized faux fur products supplier. We wish the ecotope will become better by our efforts.
Natural Wool,Wool Mattress,Natural Wool Rugs,Wool Comforter Wuxi Shuanglida Plush Technology Co., LTD , https://www.sd-fauxfurs.com