3M保护膜3M331T保护膜1250MM*100M￥1150元/支3M3187C保护膜1220MM*50M￥1000元/支3M3K04保护膜1280MM*200M￥800元/支3M5112C保护膜1220MM*100M￥1180元/支3M3112C保护膜1220MM*100M￥900元/支)