2. Simple structure, small size and light weight.
3. Close and reliable. It has two sealing faces, and the sealing surface material of the ball valve is widely used in various plastics, and has good sealing performance and can achieve complete sealing. It has also been widely used in vacuum systems.
4. It is easy to operate, and it can be opened and closed quickly. It can be rotated by 90° from full opening to full closing, which is convenient for long-distance control.
5. Easy maintenance, the ball valve has a simple structure, the sealing ring is generally active, and it is convenient to disassemble and replace.
6. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium. When the medium passes, it will not cause erosion of the sealing surface of the valve.
7. Wide range of applications, from small to a few millimeters, up to a few meters, from high vacuum to high pressure can be applied.
8. Since the ball valve has wiping property during opening and closing, it can be used in a medium with suspended solid particles.
Natural Field cosmetics raw material extracted from plants contain highly-pure and standardized active substances. They are mainly used to improve skin and hair health and appearance. The strong ingredients are: 5-Aminolevulinic acid, Idebenone, Chlorogenic acid, Polydatin. Etc.
Cosmetics are natural, synthetic or extracted various effects of different substances as raw materials, heating, stirring and emulsification and other production processes from the chemical mixture. It is a compound mixture of various raw materials after reasonable mixing and processing. The raw materials of cosmetics are various in variety and performance. According to the properties and USES of cosmetic materials, they can be divided into two categories: matrix materials and auxiliary materials.
The former is a kind of main raw material of cosmetics, which occupies a large proportion in the cosmetics formula and plays a major role in the cosmetics. The latter plays a role in shaping, stabilizing, or imparting color, fragrance, and other properties to cosmetics, which are not used in large amounts in cosmetic formulations but are extremely important.
Skin Whitening,anti-aging,arbutin,kojic acid,fullerenes
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