英语翻译In the case of goods which have at some stage entered in

英语翻译
In the case of goods which have at some stage entered into the commerce of /or undergone of manufacture in a foreign country,only that labor and material which is expended on or add to the goods after their return to the United Kingdom shall be regarded as the product or manufacture of the United Kingdom calculating the of labor and material the factory or works cost of the finished article.