The pressure bar of a lead briquetting machine, imported from German, was seriously scratched during its service.
从德国进口的压铅机压杆在使用中表面严重划伤。
The washboard using the structure of the utility model reduces pressure to the washboard body in use to make the service life of the washboard long because of the reinforcing function of the wood bar.
采用本实用新型的结构的搓衣板，由于木条的加固作用，在使用过程中减少了对板体的压力，使搓衣板的寿命更长。
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