of Chinese Stone Machinery
Plano-convex (PCX) lenses have a positive focal length and can be used to focus collimated light, to collimate a point source, or to reduce the divergence angle of a diverging source. When image quality is not critical, plano-convex lenses can also be used as a substitute for achromatic doublets....
Both surfaces of Bi-convex or Double-convex (DCX) Spherical Lenses are spherical and have the same positive radii of curvature, they are positive lenses which are thicker in the middle than at the edge. When collimated rays pass through them, light converges to a physical focal point. Bi-convex a...
Both surfaces of Bi-Convex or Double-Convex (DCX) Spherical Lenses are spherical and have the same radius of curvature, they are popular for many finite imaging applications. Bi-convex lenses are most suitable where the object and image are on opposite sides of the lens and the ratio of the objec...
Stainless steel valves have excellent rust and corrosion resistance properties. They are commonly used in the petroleum, chemical, sea water, environmental and food industries. Stainless steel valves are used to control the flow of various types of fluids such as air, water, steam, various corros...
Centrifugal cast stainless steel sleeves and liners with superior corrosion, wear and heat resistant properties are widely used in a lot of industrial applications, such as mechanical engineering, oil & gas, chemical & petrochemical, marine & offshore,aerospace, etc. Centrifugal cast ...
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The content of Congou black tea is very rich, and the varieties are divided into big leaf congou and small leaf congou. The tea strips are tender, tight and orange buds are covered
Big leaf shape tea, full grain, fat bud head, bright color, taste fresh. It is very popular in the five Stan countries of Central Asia.
This five-piece resin bathroom set uses white and gold foil color texture, exuding a simple and natural wabi-sabi style. This five-piece set includes one Hand sanitizer bottle,one toothbrush cup,one tumbler,one soap dish, one Toilet Brushed Holder convenient and practical, all crafted in hand...
Grace your bathroom vanities with a classical but contemporary style using this gray with gold bathroom accessory set 7-pieces . If your bathroom counters look a little cluttered, you may need to upgrade your space with these bathroom accessories. Stop throwing your bathroom essentials all over t...
Bathroom set features an elegant, yet simple blue design, that will work well with a variety of bathroom styles, while adding functional storage.There is a practical bathroom kit consisting of 5 items(1pcs lotion dispenser, 1pcs soap dish, , 1pcs toilet cleaning brush with holder, 1pcs toothbrush...
The 4 piece bathroom accessory set adds sophistication and a touch of glamour to your bathroom décor. This modern handcrafted resin collection is luxurious, stylish, and helps keep your bathroom décor clean, fresh, and organized.The purple gradual sandblasting effect gives you a sense of visual m...