<code id='pf10lnssa'></code><style id='pf10lnssa'></style>
    • <acronym id='pf10lnssa'></acronym>
      <center id='pf10lnssa'><center id='pf10lnssa'><tfoot id='pf10lnssa'></tfoot></center><abbr id='pf10lnssa'><dir id='pf10lnssa'><tfoot id='pf10lnssa'></tfoot><noframes id='pf10lnssa'>

    • <optgroup id='pf10lnssa'><strike id='pf10lnssa'><sup id='pf10lnssa'></sup></strike><code id='pf10lnssa'></code></optgroup>
        1. <b id='pf10lnssa'><label id='pf10lnssa'><select id='pf10lnssa'><dt id='pf10lnssa'><span id='pf10lnssa'></span></dt></select></label></b><u id='pf10lnssa'></u>
          <i id='pf10lnssa'><strike id='pf10lnssa'><tt id='pf10lnssa'><pre id='pf10lnssa'></pre></tt></strike></i>

          飘雪 高清 下载地址,飘雪在线高清观看瓜子,飘雪 高清 下载 观看全集 大全最新,飘雪高清电影 影视下载 在线观看
          中文版        ENGLISH
          CR-39 1.499 Flat-Top Bifocal Lenses
          Detailed introduction
          CR-39 1.499 Flat-Top Bifocal Lenses

          What is bifocal lenses works?

          Depending upon the occupational needs, a type of bifocal is selected.

          A salesman, who has mostly outdoor work and very little reading to do, would have a small round-top bifocal fitted.

          An office worker, who has to deal with close work but still has a fair deal of distance activity would use a regular medium-size round-top bifocal segment.

           

          An executive who deals mainly with paper work or an accountant who has masses of figures to pore over would require either a very wide round-top bifocal or preferaly the straight-line executive bifocal. However, do remember that though the straight-line executive lenses are excellent for desk work they cause problems when one has to walk with them, as the complete lower field is affected. I deally, they should be left on the desk after finishing work and a small D or Flat-top bifocal used for activities outside.

          So if you think you need it, why not choose it now?

          Contact:Helen Yin(Export Department)

          Tel: 0086-511-86986737

          Mobile: 0086-13852934595

          E-mail:marketinga@hongrunoptical.com

          On line:hongrunoptical@hotmail.com

          Contact Person:Miss Shi

          Tel:0086-021-20226018

          Mobile:0086-13818658844

          E-mail:tinaynshi@163.com

          Copyright(C) Danyang Hongrun Optical Co.,ltd
          飘雪 高清 下载地址,飘雪在线高清观看瓜子,飘雪 高清 下载 观看全集 大全最新,飘雪高清电影 影视下载 在线观看 百度 360 搜狗

          警告:本網站只適合18歲或以上人士觀看,未滿18歲禁止進入!盜版是非法行爲,請勿以身試法!
          切不可將本站的內容出售、出租、交給或借予年齡未滿18歲的人士或將本網站內容向未滿18歲人士出示、播放或放映,如果您發現本站的某些內容不合適,或者某些內容侵犯了您的的版權,請聯系我們.

          Warning: This website is only suitable for viewing by persons aged 18 or above, and entry under the age of 18 is prohibited! Piracy is illegal, don't try it yourself!
          The content of this site must not be sold, rented, given or lent to persons under the age of 18 or shown, played or shown to persons under the age of 18, if you find that certain content on this site does not appropriate, or some content infringes your copyright, please contact us.