Toothbrush with bone as earlier material, handle, imported from abroad. But a cow's thigh bone can only do more than 30 brush handles, restricting the development. Therefore, once imitated Japan use bamboo handle, use brush bristles. The founding of the beginning of the brush handle using organic glass and celluloid, 60s began using polystyrene (PS), brush with nylon yarn, with small white bristle. PS and nylon silk began to rely on imports. With the development of domestic chemical raw materials industry, domestic materials have been adopted, and the grade of products has been improved.
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