Tianjin area styrene butadiene rubber market price changes

The supply of styrene butadiene rubber in the Tianjin market was tight. The local Qilu 1502 was priced at 33,200 yuan/ton, and the oil-filled 1712 source was extremely rare. The market was in a stalemate with high prices, and the traders entered a short-term, fast-forward situation, which was aggravated by the outlook.

Bi Convex Aspherical Lens

Convex Aspheric elements are widely used to reduce aberrations, aspheric lens is ideal for light collection, projection, illumination, detection, and condensing applications.

VIS coating option provides less than 1.5% reflection from 425 – 675nm. NIR coating option provides less than 1.5% reflection from 600 – 1050nm. Contact our sales department for volume pricing or for help specifying a custom aspheric lens.

aspheric surface

Aspheric Lens


Aspherical Lens specification Machining scope φ5-200mm+0/-0.2
Material All kinds of optical glass and infrared materials aspheric(silicon,germanium,crystals etc.)
The face accuracy P-V<0.3 muon m
Surface quality 20/10-40/20
Production capacity 2000 pieces per month

Bi Convex Aspherical Lens,Molded Glass Aspheric Lens,Convex Aspherical Lenses,Aspheric Condenser Lens

China Star Optics Technology Co.,Ltd. , https://www.csoptlens.com