Crystal is one of more than 3,000 types of ores in nature. Its chemical composition is silica, its density is 2.65, its Mohs hardness is 7, its birefringence is 1.544~1.553, and its crystal is transparent and often has a hexagonal shape. The crystal is high in hardness, crystal clear, and has been highly favored by humans since ancient times. It has been listed as a gem among countries in the world. A look at the choice of materials: well-chosen crystal products, should not see the star-shaped, cloud-like and floccular distribution of gas-liquid inclusions. The texture is pure, smooth, and crystal. If there is a broken crack or spot, it is a defective product. Second, look at the work: crystal products processing process is divided into two types, namely, grinding and carving. Such as crystal necklaces, bracelets, earrings, etc. belong to the grinding products; Guanyin images, painting snuff bottles and other belongings are carved products. A well-crafted crystal product should be refined, and not only can fully demonstrate the external beauty of the crystal product (styling, style, symmetry, etc.), but also can maximize the excavation of its inner beauty (crystal, smart color). Third, look at the polishing: the quality of the crystal directly affects the value of the crystal product. Crystals must be polished through corundum during processing. The rough production will cause traces of friction on the surface of the crystal. Good crystal products have better natural transparency and gloss. According to the jargon, they are "fire heads and feet." Decoration material knowledge
Body Fat Percentage Calculator Caliper
Product Description
Body fat percentage calculator caliper is to measure the skinfold thickness of your body. The helpful gadget measures in inch and mm. The body fat percentage calculator caliper is a small, simple and inexpensive plastic caliper, that is surprisingly accurate and reliable. This caliper is widely used due to its cheap price and partly due to its recommendation in the best selling book Body-for-LIFE by Bill Phillips. The Accu-Measure skinfold calipers are not as good as some of the much more expensive calipers that are available, but for personal use it does a great job. With such a small and convenient caliper, it is easy to accurately test yourself in the privacy of your own home. The caliper also has a unique feature that of a sliding marker that will remain after testing each site so that you can check your measurement before resetting it. Purchase of this product often includes instructions for body fat measurement, body fat measurement charts, and a chart for tracking results, making it a great do-it-yourself kit.
About colros
White
Beige
Black
About measurement units
1. inch and mm
2. mm
About Custom Logo
heat-transfer printing lgoo
Body Fat Measure Caliper,Body Fat Calliper Tape,Caliper Fat and BMI Wintape Measuring Tape Company , https://www.wintapetape.com
Buy: Easy way to identify crystal crafts
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