Ways to identify true and false çç… :
1. Seeing; the surface of the real enamel is crystal glass-like luster and hard texture, while the imitation enamel property is soft, the surface gloss is oily and plastic, and it is easy to scratch. And there are very few cross-colors in Shinji.
2, knife scraping; scraping with a small blade on the surface, the real enamel is hard, not easy to scratch, and the resin plastic type of enamel is easy to scratch.
3, fire; ignite a cigarette, burn the cigarette on the surface of the sputum, or directly use the lighter to ignite and burn, imitation çç… not refractory burning, the surface will leave burn marks, but the real çç… is not damaged.
Comparison of true and false ::
Comparison project | Sincere | Counterfeit/fake |
work | Fine workmanship, smooth polishing | Workmanship, rough grinding, mold casting and polishing marks |
texture | Hard texture | Soft texture, plastic texture |
luster | Crystal glass cold gloss | Plastic, look at the traces of the machine polished |
colour | Clear, distinct colors, no color | Large area of ​​cross color and trachoma |
high temperature | High temperature resistance | Not resistant to high temperatures, there are traces of fire |
Wear | durable | Not resistant to wear, collision, knife scratching |
Ageing | Not easy to age, still shiny as new for hundreds of years | Easy to age and fade |
Cobalt metal is mainly used for making alloy. Cobalt-based alloy is cobalt and chromium, tungsten, iron, nickel group made of one or more of the general term. Tool steel containing a certain amount of cobalt can significantly improve the wear resistance and cutting performance of steel. Stellite hardeners containing more than 50% cobalt do not lose their original hardness even when heated to 1000 ° C. Nowadays, these cemented carbides have become the most important material for use between gold cutting tools and aluminum. In this material, cobalt alloyed with other metal carbide grains together to make the alloy with higher toughness and reduce the sensitivity to impact, the alloy welding on the surface of the parts, the parts can make Life expectancy increased by 3-7 times.
Cobalt Round,Round Shank Cobalt,Cobalt Round For Polycrystalline Diamond,Cobalt Round By Stamping
Ningxia Tongji International Trade Co.,Ltd. , http://www.tongjiinternational.com