Different grades of crystal polystyrene molding pellets range from 150, 000 to 350, 000 weight average molecular weight . 不同牌号的结晶聚苯乙烯模塑粒料平均分子量范围从150,000-350,000。
Smoothness control of cement stabilized gravel stratum 水泥稳定粒料基层平整度控制
Abrasive grains - method for sampling and splitting 研磨粒料.第3部分:取样和裂解方法
Abrasive grains - method for determining the capillarity 研磨粒料.测定毛细管作用的方法
Automatic filling systems for granulated products 粒料填装的自动操作系统