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我厂从1982年起批量使用塑料底圆,取得了良好效果。 本文就塑料底圆在我厂的使用情况及其使用前景,谈谈一些看法。 塑料底圆有如下优点:
I plant from 1982 onwards in batches plastic bottom, and achieved good results. This article on the use of plastic bottom circle in our plant and its use prospects, to talk about some views. Plastic bottom circle has the following advantages: