YEN CHA tea ladies 2017 early autumn new clothing album, woven by 100% tussah silk. The natural wild tussah silk fiber is thick and thin, forming a fabric texture, combined with the soft color of the silk fabric itself, and the touch is dry and simple. Neutral detergent is recommended and it is washed separately from other clothes, ie soaked. China Optical Domes,Optical Quartz Dome manufacturer, choose the high quality Optical Glass Domes,Optical Quality Glass Domes, etc.Founded in 2014, Bena was co-founded by several experienced engineers who have more than 10 years of optical design, process, production and test. We provide customization service for high precision (rms = 1/100λ, λ=632.8nm), large diameter plane mirror (>500mm) and aspherical lens, as well as professional spherical lens (such as optical domes with diameter 280mm), involving different materials including K9, Silicon, Sapphire, SiC, glass ceramics, fused silica, and other various optical glasses, and we can also deal with the nickel-phosphorus alloy surface on different substrates. Optical Domes,Optical Quartz Dome,Optical Glass Domes,Optical Quality Glass Domes Changchun Bena Optical Products Co., Ltd , https://www.benaoptic.com