Furong stone powder crystal can be divided into two types. Starlight powder crystal refers to the powder crystal which has no stone grain and has the transparency and the pink color as the criterion. The powder crystal can see the intersection of three straight lines under the single light source to form six distinct rays. The ice powder crystal is highly transparent, its texture is as transparent as ice, and the good appearance will also bring along the pink texture of the powder crystal. Clouds or natural ice cracks. So, how to choose Furong stone powder crystal? At first glance, the selection of materials: crystal materials with excellent materials should not see star-shaped, cloud-like and flocculent gas-liquid inclusions. 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. Second, look at the work: the processing of crystal products is divided into two types, namely the grinder 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 exquisitely refined, not only can fully reveal the external beauty (styling, style, symmetry, etc.) of the crystal product, but also maximize its inner beauty (sparkling, clever color). Three look polishing: the quality of polishing directly affects the value of crystal products. The crystal must be polished by diamonds during the processing, and the rough production will cause traces of friction on the crystal surface. Good crystal products have natural transparency and luster. The saying goes “fire headâ€, which is worth buying. Polyether Polyols for Flexible Foams The products are suitable for preparation of flexible polyurethane foam plastics, such as furniture mat, mattresses and sound-absorbing board, carpet bottom, filters, packaging materials, etc. When foams are produced,the amount of the additives is variable and adjustable in a wide range.They also have good stability during foaming. Polyether Polyols For Flexible Foams,Polyol Ether,Polyether Polycarbonate Polyols,Polyoxypropylene Triol NINGBO LUCKY CHEMICAL INDUSTRY CO., LTD , https://www.nblkchem.com