chalk colored chalk 100 pieces of chalk_贾氏文具工艺礼品有限公司

chalk colored chalk 100 pieces of chalk

chalk colored chalk 100 pieces of chalk

粉笔彩色粉笔 100支装粉笔

300 piece

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主要用于黑板上用，无尘粉笔，环保粉笔

1：水溶性粉笔学校/教学专用水溶性无毒/无尘环保粉笔。

2：能书写在玻璃板、塑料板、水泥板、白板、绿板等.......... 。

3 :水溶性粉笔由特殊高分子纳米材料颜料精制而成，具有比传统石膏粉笔高得多的白度及色度。

4:由于具有细腻的纳米，显色效果大幅提高，所以比传统粉笔耐用20—30倍。

5: 产品符合严格的化妆品标准，使用中性环保原料制作，不伤皮肤，粉笔内加入特殊材料，容易清洗。

6：关注教师和学生的身体健康，让我们一起来推广无尘教学，净化教学环境吧！

Update time：20230406093909