天然碳酸钙 meaning in English

natural whiting

Rubber compounding ingredients - natural calcium carbonate - test methods
橡胶配合剂.天然碳酸钙.试验方法
Raw materials for the rubber industry . naturel calcium carbonate powder
橡胶工业用原材料.天然碳酸钙粉末
Quicklime , hydrated lime and natural calcium carbonate - methods for physical testing
生石灰熟石灰与天然碳酸钙.物理试验方法
Quicklime , hydrated lime and natural calcium carbonate - methods for chemical analysis
生石灰熟石灰与天然碳酸钙.化学分析方法
Quicklime , hydrated lime and natural calcium carbonate - methods for preparing samples for testing
生石灰熟石灰与天然碳酸钙.试验用试样的制备方法