Home / CALCIUM BASE (TECHNICAL GRADE) CALCIUM BASE (TECHNICAL GRADE) Product List Ground Calcium Carbonate mesh 3000 (Code: NRS 3000) Calcium Carbonate (Code: NRS 3000 A) Light Calcium / Calcium PCC Type D065 Light Calcium / Calcium PCC Type D050 Nano Colloidal Calcium (Code: NRS 5000 A) Technical High Grade Calcium Hydroxide (Code: TCH-3000)