Yadong company was formerly the third Qingdao Rubber Machinery Factory, was founded in October 1976, with more than 20 years of rubber production machinery of history.是什么意思_Yadong company was formerly the third Qingdao Rubber Machinery Factory, was founded in October 1976, with more than 20 years of rubber production machinery of history.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句