At present, the Heavy calcium carbonate is mainly used in the primary products with the general granularity about 400 items and the low added value. 目前我国重质碳酸钙的应用还主要是初级产品，一般粒度在400目左右，附加值低。
Value added of the primary industry 第一产业增加值
The development of special wax is the crossover path that the paraffin wax is changed to the high added value product from the primary product in Fushun Petrochemical Company. 发展特种蜡是抚顺公司石油蜡由初级产品向高附加值产品跨越的必由之路。
Of this total,the value-added of the primary industry was 1,429.9 billion Yuan,up by 3.5 percent. 其中，第一产业增加值14299亿元，增长3.