The dustless chalk is of good quality, go and get some more.
這批無塵粉筆的質(zhì)量不錯(cuò), 再去買一些吧!
互聯(lián)網(wǎng)
The characteristics of dustless compouded lead salt stabilizer are good, and without dust poison.
無塵復(fù)合鉛鹽穩(wěn)定劑性能優(yōu)良, 無粉塵毒害.
互聯(lián)網(wǎng)