What is a platinum ring? Platinum ring refers to the ring made of platinum. It is a noble symbol. The platinum ring represents a pure love between lovers, which can make people feel their sweetness.
According to the latest revised national standard “Regulations and naming methods for the purity of precious metals for jewelryâ€, the platinum standard can only be called platinum. In addition, only jewelry with a platinum content of 850 ‰ or more can carry any of the following proprietary signs, so a simple method of identification is to turn over the platinum jewelry and see if there is a PT mark.
The identification of the ring material. The ring has a single material and a variety of materials, the former made of platinum, gold or silver, the latter made of white gold, gold or gold, gold. In addition, the ring is also divided into gems. Different types should be correctly identified when purchasing.
Appearance quality check. The ring is required to be evenly coated, harmonious in color, fine in density, bright and bright, without shell skin, enamel or sand. In the case of external inspection, it should also be seen whether there is a manufacturer code and a stamp indicating gold or silver-containing components.
Process quality inspection. It is required that the welding of the ring should be smooth, the mouth should be thick; the pattern should be clear and there is no overlap; the two sides should be neat, straight, no dog-shaped, and the combination of patterns should be coordinated; the parts of the ring should be smooth and free of burrs.
Model checking. The ring is required to be beautiful in shape and unique in style. For a symmetrical ring, the ring is required to be symmetrical on both sides, with the same height and thickness, and equal thickness. If it is a flower ring, it is required to be flat, angular and square. For a ring with a gemstone, the position of the gemstone should be stable, the gemstone and the bracket should be tight, the smaller the gap, the better, the teeth of the bracket should be smooth, and the position should be square. For all kinds of rings, the teeth are required to be centered, and the finger wheels must be rounded.
Flame Retardant Shirts,Fire Proof Shirt,Fire Retardant Shirts,Fire Resistant Shirts
Xinxiang Worldbest Patron Saint Co., Ltd , https://www.xxhyhsworkwear.com