1)在磨料磨具的商标(包括盛磨料的布袋,油石、 磨头的包装物,砂轮的纸商标及喷字)上,必须写明制造 厂厂名、磨料磨具名称,主要规格、安全使用速度、出 厂日期,如例1、3、5所示。 2)出国的磨料磨具必须加写“中华人民共和国” 字样,并在汉字名称后注上代号,用括弧括起,如例2 4、 1) The name of the manufacturer, the name of the abrasive tool, the main specifications, and the safety must be stated on the trademarks of abrasive tools (including bags for abrasive materials, packages for oil stone, grinding heads, and paper marks and characters for grinding wheels). Use speed, delivery date, as shown in Examples 1, 3, and 5. 2) Abrasives that go abroad must be written with the words “People’s Republic of China” and the names of the Chinese characters should be marked with a code name and enclosed in brackets as in Example 24.