M700 series are double shafts drives. It is strong, quiet and suitable for both straight and curve tracks. It is widely used in all kinds of fold canopies.是什么意思_M700 series are double shafts drives. It is strong, quiet and suitable for both straight and curve tracks. It is widely used in all kinds of fold canopies.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句