免费深夜福利在线观看,91麻豆国产综合精品久久,久久精品国产亚洲资源,亚洲毛片网站在线观看,不卡一区二区国产在线,国产一级高清片在线观看,欧美激情性做爰免费视频,国产成人久久精品二区三区,国产高清自拍电影网站,亚洲三级一区二区视频

　　該系列玻璃珠被普遍應用于染料、油漆、涂料行業(yè)的分撤、研磨介質和填充劑。研磨珠具有大小均勻、表面光滑、硬度高、化學穩(wěn)定性好等特點。填充型玻璃微珠可用于改善增強玻璃鋼、橡膠等，耐熱、耐磨、抗壓強度等多項性能。

　　This type of glass beads is widely used in dye, paint, coating industry as disperser\abrasive media and filler. The grinding materials has the characters of the equal size, smooth surface, high hardness, chemical stability and so on. The filling materials can be used for rubber, glass fiber reinforced plastics etc. to increase its heat-resisting, abrasion resisting, compression strength performance.