本发明的浆料成本低、效果好、安全环保，无毒副作用。

The slurry has low cost, good effect, safety, environmental protection, no toxic and side effects.

youdao

本发明的浆料成本低、效果好、安全环保，无毒副作用。

The slurry has low cost, good effect, safety, environmental protection, no toxic and side effects.

youdao