【第 1 段建议】: 1. "Vertical Shaft lmpact Crusher"应为"Vertical Shaft Impact Crusher" (字母 'I' 应为大写的 'I' 而不是小写的 'l') 2. "High Weir Spiral Classifier"中有两个空格，应调整为"High Weir Spiral Classifier" (多余的空格) 3. "Submerged Spiral Classifier"中也有两个空格，应调整为"Submerged Spiral Classifier" (多余的空格) 4. "EPCO"应为"EPC" (常见缩写错误) 其他内容无错误。 --- 【第 2 段建议】: 1. "let's" should have a consistent use of an apostrophe, remove the HTML code; replace "let's" with "let's" 2. "the small ball mill" should consistently capitalize "Small Ball Mill" to maintain uniformity. 3. "50 tons per hour - the ball mill in this production range is generally called small ball mill." should either be a complete sentence or restructured for clarity, consider changing the dash to a colon or semicolon. 4. "high manganese steel, high chromium cast iron, medium manganese ductile iron and rubber. Etc.; the material of the lining is metal lining," should not capitalize "Etc." 5. "the structural technology of the small ball mill on the market" can be clearer; consider rephrasing to "the structural technologies of small ball mills available on the market". 6. "low carbon alloy steel ball," should use "low-carbon alloy steel balls," for correct pluralization. 7. "the technology and technology of the small ball mill" is redundant; consider changing one instance of "technology" to "techniques". 8. "the required manufacturing proce" appears to be incomplete; it should probably be "the required manufacturing processes." Overall, ensure consistent capitalization and proper punctuation throughout the text. --- 【第 3 段建议】: 1. "Demand(multiple):" 应为 "Demand (multiple):"（在"Demand"和"("之间应有空格） 2. "Materials (brochures, catalogs）" 中的括号应为英文，全角变为半角，且右括号应为英文的")"（应为 "Materials (brochures, catalogs)"） 3. "WhatsApp:+86 13761974616" 和 "Sales Hotline: 0086-21-58386189" 之间应有空格（应为 "WhatsApp: +86 13761974616" 和 "Sales Hotline: 0086-21-58386189"） 4. "Stone Crusher In Ethiopia" 应为 "Stone Crusher in Ethiopia"（首字母大写只需适用于句首，其他情况小写） 5. "Jaw Crusher" 处首字母大写的表述可能不一致，建议保持统一（在类似标题中应保持一致的小写或大写）。 其余文本无错误。