13世纪下半叶，一种在金属胎上装饰瓷釉的手艺从阿拉伯传入中国。
A kind of handicraft of decorating enamel on the metal was introduced from Arab into China in the late half of the 13th century.
覆层后的金刚石强度、与金属胎体的结合力和抗温(烧结钻头时的温度)性能，以及导电性等有明显的提高。
The strength of the coated diamond, the bonding force with the metallic matrix, heat resistance (sintering temperature of diamond bits) and conductance are all improved.
握剪辑提供更大的强度比缝缝或任何类型的金属扣眼，因为他们没有爆胎的封面。
Grip Clips provide greater strength than sewn seams or any type of grommet, because they do not puncture the cover.
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