欧美日韩国产精品免费观看国产久久亚洲不卡,,日韩无码国产AV日本在线一区二区,,免费毛片二区三区久久久五月综合激情影院

        ChineseEnglish Hotline:0571-86062609
        Industry information current location:Home  > News > Industry information
        Anti-rust paper Click rate: Release time:2024-11-25 Information sources:Hangzhou Qiyao New Material Co.,Ltd.


        VCI non-ferrous metal anti-rust paper is selected by the bleached smooth kraft paper, the above coating does not contain silicon, can prevent gold and silver and other precious metals due to hydrogen sulfide discoloration, mainly used in electronic equipment, circuit boards, silver wire frame and so on.

        VCI non-ferrous metal anti-oxidation anti-rust paper will always release a small amount of VCI anti-rust agent during use. After the use of VCI non-ferrous metal anti-oxidation paper packaging, a gas protective layer will be formed in the packaging, which can reliably inhibit the corrosion and oxidation of gold and silver products as well as electronic equipment and circuit boards.


        Copyright ? 2017 huanle1.com All Rights Reserved Copyright·Hangzhou Qiyao New Material Co.,Ltd. Zhejiang ICP No. 17034714-1