【第 1 段建议】: 1. "High-quality" should be "high quality" to maintain consistency in style (either hyphenate or do not, but both must be the same). 2. "lmpact Crusher" should be corrected to "Impact Crusher" (the letter 'l' is incorrectly used instead of 'I'). 3. "High Weir Spiral Classifier" should be "High Weir Spiral Classifier" (extra space). 4. "Submerged Spiral Classifier" should be "Submerged Spiral Classifier" (extra space). 5. "Generic" should be lowercase unless it is part of a title or opening a sentence. --- 【第 2 段建议】: 1. "grinding mill's price must higher" 应为 "grinding mill's price must be higher" 2. "and low price should know that get what one pays for." 应为 "and low price should know that they get what one pays for." 3. "the range of processing materials of grinding mills is large" 应为 "the range of processing materials for grinding mills is large" 4. "In generally," 应为 "In general," 5. "different kinds of grinding mill have different input size," 应为 "different kinds of grinding mills have different input sizes," 6. "raymond mill has been upgraded" 应为 "Raymond mill has been upgraded" 7. "not only the feed size has been expanded" 应为 "not only has the feed size been expanded" 8. "the maximum of 50 tons." 应为 "the maximum capacity of 50 tons." 9. "the material should be non-explosive and non-flammable." 在“non-flammable”后添加一个句号，句子已缺少句尾标点。 --- 【第 3 段建议】: 1. "WhatsApp" - 应更改为 "WhatsApp:" 2. "Materials (brochures, catalogs）" - 应更改为 "Materials (brochures, catalogs)"，括号结束符号应为英文的右括号。 3. "Demand(multiple):" - 应更改为 "Demand (multiple):"，需在 "Demand" 和 "(" 之间添加空格。 其他部分无错误。