• <bdo id="k4sym"><bdo id="k4sym"></bdo></bdo>
  • <bdo id="k4sym"></bdo>
  • <nav id="k4sym"><input id="k4sym"></input></nav>
  • <blockquote id="k4sym"><samp id="k4sym"></samp></blockquote>
  • <blockquote id="k4sym"></blockquote>
  • 五源科技

    Mechanical products and processing field

    When manufacturing parts by mechanical means, such as turning, milling, drilling, grinding, cutting, stamping, etc., it is necessary to clean, convert film, lubricate and rust-proof the processed parts before or after processing, so as to provide corresponding processability and protective performance for products and processing machinery. Our products can serve the mechanical processing industry: phosphating film agent for cold deformation, lubricant, degreasing agent, cleaning agent, metalworking fluid (cutting, turning, grinding, drilling, etc.), antirust water, blackening agent, dehydrated antirust oil, ultra-thin antirust oil, drawing oil, etc.


    乌克兰美女高潮呻吟_中国妇女毛茸茸黑乎乎_五月丁香啪啪_高潮痉挛videos ?