Bristles and brush handles are made of food grade materials that are more durable and safer to use.
刷毛和刷柄部分都使用了食用级别的材料注塑而成，使用起来更耐用和更安全。
The top-grade hardware exhibits its outstanding status and the high-end technologies brush up the resplendent jewels.
一流的硬件彰显不凡的出生，尖端的技术擦亮璀璨的明珠。
We discuss the key technology and some troublesome problems during the manufacture of top grade bovine hide brush-off leather.
介绍了高档牛皮擦色革在生产中的一些技术关键和技术难点。
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