Veinstone minerals include calcite, white-cloud rock, quartzite, mica and ash content, etc.

方解石、白云石、石英、云母、灰质等。

Recycled waxes by holding deposition at home cann't meet the requirements of wax performance,especially dramatical superscale in ash content.

国内回收模料采用静置沉降法,不能保证模料的性能要求,尤其是灰分严重超标。