国产激情久久久久影院老熟女_日本牲交大片免费观看_国产一区二区三区不卡av_国模冰莲极品自慰人体

微觀形貌為白色帶孔圓球，熔點1670℃，球體大小分布在2-30μm。用途：包裹香精后，用于陶瓷上釉、汽車油漆、塑膠、無紡布、皮革、家具、涂料、高分子注塑制品等能夠長期緩慢釋放香氣，用于室內(nèi)涂料可吸附游離甲醛、游離酚，凈化室內(nèi)空氣，包裹不同顏色熒光粉，在紫外燈下可延時發(fā)光，用于商品防偽。

Silicon Dioxide Substrate Based Micron-Sized Ball Bag

This product comprises white pored round balls in microscopic shape with melting point of 1670℃. These balls are distributed from 2μm to 30μm in size. Usage: Wrapped with essence, this product, when applied to, among other things, ceramics glazing, auto paint, plastics, non-woven fabrics, leather, furniture, paints and high molecular injection molding products, can release fragrance slowly for a long term and when applied to indoor coating, can absorb free formaldehyde and free phenol to purify indoor air; furthermore, when wrapped with phosphor powders of different colors, this product may emit light in delay under ultraviolet lamp and be used for anti-counterfeiting of commodities.