<object id="v699s"><li id="v699s"></li></object>
<nav id="v699s"><video id="v699s"></video></nav>
<pre id="v699s"><em id="v699s"></em></pre>
    1. <code id="v699s"></code>

          <nav id="v699s"></nav>

            <th id="v699s"><video id="v699s"></video></th>
          1. <strike id="v699s"><video id="v699s"></video></strike>
            1. <object id="v699s"></object>

              久久精品国产一区二区三区日韩,一个人看的在线www高清视频,一个人的视频www片免费,一级成人a免费视频

              Our surface treatments focus on improving corrosion protection, adjusting the friction co-efficient and enhancing component aesthetics.

              Our surface treatment processes include electroplating, phosphating and GEOMET, which are all chromium(VI)-free.

              Electroplating

              The steel parts can be economically protected against corrosion with zinc or zinc alloy coatings. Coating sickness is 8~13μm. then by deactivation and seal treatment the corrosion protection can be further enhanced by the addition a secondary passivation and a final sealing coat.

              Salt spray test

              Type

              White rust

              Red rust

              ZnZinc & color passivation & sealing

              >96h

              >240h

              Zinc & black passivation & sealing

              >96h

              >240h

              Zn-Ni coating & color passivation & sealing

              >200h

              >1000h

               

              Phosphating

              Anti-corrosion is realized through a layer of phosphate film which is formed on the part surface.

              Salt spray test 

              Type

              SST test

              Manganese phosphating & rust preventing oil  

              >24H

              Zinc phosphating & rust preventing oil

              >24H

               

              GEOMET(GEOMET)

              GEOMET coating is formed on part surface through centrifugal immersion or spraying technique, which can effectively avoid hydrogen embrittlement and thus better anti-corrosion effect is realized.

              Salt spray test

              Type

              CCT test

              SST test

              GEOMET+PLUS

              480H

              1000H

               

              久久精品国产一区二区三区日韩,一个人看的在线www高清视频,一个人的视频www片免费,一级成人a免费视频