The performance of this product is beyond the level in this field.Its appearance is black blocky piece without impurit、granular and it is odorless and touched smoothly.
The performance of this product is beyond the level in this field.Its appearance is black blocky piece without impurit、granular and it is odorless and touched smoothly.
该产品性能优异，各项性能均超过同行业水平，产品外观为黑色均匀块状物、无异物、无颗粒、无异味、手感细腻、光滑，深受外资企业地青睐。