Limestone powder can be generally divided into coarse powder processing (0-3MM), fine powder processing (20 mesh-400 mesh), and ultrafine powder deep processing (400 mesh-1250 mesh) and micro powder processing (1250 mesh-3250).Four types. The first stage Crushing Limestone chunks are crushed by crusher to the input fineness of the mill (15mm ... Jul 28, 2021 The common fineness of dolomite powder is 325 mesh, 400 mesh, 600 mesh, 800 mesh, 1000 mesh, 1250 mesh. The purpose of modification is to change the surface alkalinity of dolomite powder, overcome the bonding performance between filler and rubber, reduce shrinkage and internal stress, prevent crack propagation, and improve the processing ... Hy-Sailing Low price with Hot sale talc powder and Top quality Talcum Powder 1250 mesh. US $400.00-$500.00 / Ton. 1 Ton (Min. Order) 3 YRS Shanghai Hy-Sailing Chemical Tech. Co., Ltd. 100.0%. ... 1250 mesh talc powder ultrafine grinding mill machine. US $75000-$80000 / Set. 1 Set (Min. Order) 5 YRS Zhengzhou Kefid Mechanical Industry Science ...