Why do our keychains use the electroplating process？ Keychains have various shapes, such as cartoon shapes, brand shapes, and simulation models. The materials are generally copper, aluminum, rubber, plastic, etc., and the zinc alloy surface is mainly nickel-plated or rhodium-plated with anti-rust el

Pattern design and cleaning methods of coins Coins have a variety of shapes, such as cartoon shapes, brand shapes, simulation models, etc. The materials are generally copper, aluminum, etc., mainly zinc alloy surface nickel or rhodium and other anti-rust elements. Coins have become a small gift. Thi

What is the type of emblem?Different signs have different meanings. As people pay more attention to their own rights, many companies and organizations have begun to make their own logos. The most important thing in making an emblem is to ensure the definition and meaning of the emblem. Only by under

What is the meaning of medals?Many Happy Valley is becoming medals control, sun medals after the game have become a collection of medals inalienable hobby. For many people of Happy Valley, the collection, display, exhibition Marathon medal is not a show-off, but the glory of his life. In addition, w

What is the history of the development of the bottle openers？Each bottle opener is an essential tool for drinkers who love to open a bottle of wine process is also an important part of the wine experience. There are many types of corkscrews on the market. With the emergence and development of modern

What is a lapel pin?The lapel pin is a small decorative badge, as the name suggests, worn on the lapel, sometimes on the collar. lapel pins are metal and are also called bar pins. In our lives, the wearing of lapel pins is unique. There are many kinds of lapel pins. Let us learn about lapel pins.Her