There are various kinds of tin devices, and there are tin-containing grades and high-quality grades. How do you distinguish the advantages and disadvantages of tin devices when purchasing tin? Mainly through "sound, color, quality, and work".
First hear it
The pure tin material is good in ductility, because it is distorted and sounded, it is called "ring tin". The handicraft is distorted and becomes distorted. Therefore, Tea Tins this method cannot be used for purchase, but we can “smell the sound” in a simpler way: sweep the tin from the palm of the hand outwards with a fingernail. 97% of the tin has clear metal. Acoustic and brief echoes. 99.9% of the tin sounds are not brittle and have no echoes, and they are made of tin.
Look at the color
Pure tin, color such as silver, bright as a mirror! Content of 97% tin after polishing is not white, belong to dark light; content of 99.9% tin polished silver bright color, Tea Tins is a ride on tin, looks like silverware.
Three different qualities
Quality, refers to the purity of the tin, the higher the purity of the tin, the more durable, the food is not only harmless, but also can be kept fresh for a long time; low purity tin, Tea Tins loaded food is perishable, but also not durable enough. The imported tin devices indicate more purity. Most of the domestic tin devices are not specified, but we can know a little about them from their origin.
After rewarding his work
Workers, refers to the process of tin, tin process is mostly determined by its purity, 97% and below the tin texture is hard, suitable for machining, the processed tin is often integrated, relief effect is obvious, but its sealing Not the best, so tea cans are generally designed with two layers inside and outside. 99.9% of the tin has soft texture and strong handwork features. A piece of work is mostly composed of several parts. Tea Tins It can show advanced carving and hollowing technology. The high purity tin seals well. The tea can only use one cover to achieve the effect. You can often find that when you force a cover to bounce back, this is the reason.
Ask about its price
The price refers to the price of tin. Tin itself is a precious metal. Tea Tins Each finished product should have its value. If the retail price is too low, this product is suspected of having alloy tin and there is a potential safety hazard!