Feature: Round pit pattern increase friction resistance, prevent from slipping of goods.
Feature: Round pit pattern increase friction resistance, prevent from slipping of goods.
特征：圆坑花纹磨擦系数大，运行中增加阻力，防止物料下滑。
Feature: Round pit pattern increase friction resistance, prevent from slipping of goods.
特征：圆坑花纹磨擦系数大，运行中增加阻力，防止物料下滑。