Ballizing is a method of finishing on internal diameter.It can give improvement in dimensional tolerance, roundness and surface finish.

球推压法是一种内孔精整加工的方法,它能提高内孔的尺寸、形状精度和改善表面粗糙度。

When choosing surface finishes in a food factory, due cognisance must be taken of the type of food being handled and of the type of operations to be carried out in each area of the factory.

食物工厂完成，当选择表面完成，必须采取交付认识被处理的食物的种类和的在工厂的各个区域将执行的操作的种类。这些操作通常包括环境清洁并且对洗涤剂，并且，可能，蒸汽的用途。