... for concrete or mortars. It is used in the building industry, in the production of feedstuff mixtures, for silage and in ... the tannery.3. SepecificationCompositionFeed GradeTec GradePurity, wt.%, min 98 .0 98.0Ca content, wt.%, min. 30.4 30.1Heavy metals ... -8910238FAX:86-393-4622378MPhone:86-13732799230Puyang Tiancheng Chemical Co.,Ltd. 98% Calcium Formate