国产又色又香又爽视频_国产大陆一级毛片av_fc2ppv高清无码手机在线_高清色惰www日本com_英语老师你的桃子好软水好多_特级毛片老女人视频直播_国产欧美日韩亚洲一区二区在线观看_亚洲?V成人中文无码转区_2023av天堂在线视频精品观看_国产一级刺激高潮视频

How to maintain and maintain medals

2023-04-17 794

When handling the dust on metal trophies and medals, it is necessary to use a clean and soft cloth to scrub, and to take care of various subtle details at the edges and corners, it is necessary to use a soft small bristle brush or air blow to remove the dust.


When storing trophies or medals in daily life, in order to avoid mechanical damage to metal trophies, they should be placed separately and not collided or stacked with each other.


To prevent the space for metal trophies and medals from being dry, it is free of dust and air pollutants, with a constant temperature of 18-24 degrees Celsius and a relative humidity of 40% -50%.


中山獎牌


We also need to avoid trophies and medals coming into contact with certain chemical components, such as" Acids, fats, chlorides" Harmful ingredients such as.


Over time, metal trophies and medals are prone to oxidation issues. If you want to restore the metallic luster, you can use cotton or silk cloth to scrub and achieve a polishing effect. You can also purchase some anti oxidation photo frames to set up medals.


In addition to daily maintenance, regular rust removal treatment is also necessary.


Article source: Zhongshan Medal dzqjyw.cn