(1) Look at the material selection: In the case of well-selected crystal products, gas-liquid inclusions with star-shaped, cloud-like and flocculent distribution should not be seen. The texture is pure, smooth and crystal-clear. If it is found that there are cracks and spots with different depths, it is a defective product. (2) Look at the workmanship: The processing of crystal products is divided into two types, namely, the miller and the engraver. Such as crystal necklaces, bracelets, earrings, etc. are abrasive products; Guanyin image, inner painting snuff bottle, etc. are engravings. A well-made crystal product should be refined, not only can fully reveal the external beauty (styling, style, symmetry, etc.) of the crystal product, but also can maximize its inner beauty (smooth, clever color). (3) Look at polishing: The quality of polishing directly affects the value of crystal products. The crystal must be honed by diamond sand during the processing, and the rough production will cause traces of friction on the crystal surface. Good crystal products have better natural transparency and luster, and they are said to be "fire heads". (4) Look at the hole: For the crystal products (such as necklaces, bracelets, beads), it is necessary to see whether the holes are straight, the thickness of the holes is symmetrical, and there are no small cracks. The wall of the hole must be clear and transparent, without "white marks".
The grey breathable silicone insole is made of silica gel material. The design of this insole can be cut by yourself, and the length of the insole can be adjusted according to the size of your shoe.
This grey breathable silicone insole has good elasticity, which can reduce shock, save effort and protect the foot during exercise.This gray surface breathable silicone insole is suitable for athletic shoes, casual shoes, leather shoes, etc. It is also a good choice for outdoor sports, business and leisure.
Silicon Insoles Henan Bangni Biotechnology Co.,LTD , https://www.insolesbangni.com
July 13, 2021