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The Invention And Development Of Ancient Toothbrushes In My Country

2021-04-12

Daoyuan, a famous Japanese monk who had studied in China, described in his book "Zhengyan Fa Zang" that he had seen the tufting toothbrush used by monks in China at the time of the Song Dynasty. The book reads like this: "In April of the sixteenth year of Jiading in the Great Song Dynasty, Guiwei (1

China's Bamboo Products Industry Market

2021-07-13

At present, China's bamboo product market has undergone tremendous changes.The development and utilization of bamboo products has gradually ended the original history of selling bamboo alone, forming the direction of rough processing to deep processing.The development of products from singleness to

Study The Effect Of Toothbrushes On The Brushing Effect

2021-04-09

Purpose: To analyze the related factors that affect the hardness of the bristles, to compare the plaque removal effects of toothbrushes with different hardness and different materials, to study the effect of toothbrushes on the brushing effect, and to guide residents to choose suitable toothbrushes

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