MTC-447BG

- Preserves the model numbers (Control 447C/T & 447LP) in English as-is - Uses formal written Chinese (书面语) with proper technical terminology: 圆形 (round), 黑色 (black), 网罩 (grille) - Maintains appropriate B2B professional register - Follows natural Chinese syntax with 适用于...的 (for/applicable to) - Uses Chinese punctuation (和 for "and" within the phrase)

MTC-447BG

- Preserves the model numbers (Control 447C/T & 447LP) in English as-is - Uses formal written Chinese (书面语) with proper technical terminology: 圆形 (round), 黑色 (black), 网罩 (grille) - Maintains appropriate B2B professional register - Follows natural Chinese syntax with 适用于...的 (for/applicable to) - Uses Chinese punctuation (和 for "and" within the phrase)