Dear sir/miss:

  We are Changchun Shuangsheng Optics Co.,ltd of China.
  Our company has more than one hundred of employees, owns eight intermediate title of a technical post persons and eighteen technology personnel, three persons among them are retained from Light Machine which engage in optics specially. Our company has high credit standing and our direct manager Yingqing Sun has twenty years' experiences in optical scope. Therefore, we have the ability of research and develop new product independently.
  In recent years, our company introduces into large quantity of high accuracy optical instrument equipments and advanced pipelining from France, Japan, South Korea and etc. Therefore, accomplished advanced industry, multiform species and large scales optical entrepreneur.
Our company is skilled at manufacture lens, such as plano-convex lens, plano-concave lens, biconvex lens, biconcave lens, meniscus lens, veneer lens(achromatic lens).The other optical element of our company are plate lens, magnifier, reflect lens, windows, prism, cylindrical lens, spherical lens, aspherical lens, polarize lens, waveplates, filters, board lens, pinhole lens, zoom lens, viewfinder, WYFD anti-icing fluid and cell liquid checking instrument and hand-saccharometer and so on. All the materials are all wool and a yard wide optical glass and optical crystal. The best SURF can get to 10-5, the surface precision can get to 1/20-1/50, the size can get to 1.5mm-100mm, and also can coating all kinds of optical devices    
Currently, we have four greatest spectrum: telescope, riflescope, camera lens, refraction examine instrument and more than one hundred and seventy species. Our factory designs light, machine, electricity incorporate CCD lens, computer absorb image caput, fingerprint pick up instrument of the three greatest spectrum high-tech product independently for leading product of my factory. Far-sell to Japan, America, Taiwan, Southeast Asia and etc.
  Welcome overseas cooperate with our company and develop new optical product together. The wish dose your cooperate the colleague faithfully.

Best Regards!
                                        Sincerely
                  Lillian
    
Contact Name : Meiling Qin (秦美玲)　   TEL : 86-431-2843885
FAX : 86-431-2843885
QQ: 654453342
Homepage:  /
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Postcode: 130041
Address: No.1 Dongdaqiao street, Nanguan Region, Changchun, Jilin China
（中国）吉林省长春市南关区东大桥街1号 130041