This is a huge business in Britain and it's kind of national brand.
这在英国是一个巨大的产业，它已经成为了民族品牌。
英语百科
National brand
The brand name of a product that is distributed nationally under a brand name owned by the producer or distributor, as opposed to
local brands (products distributed only in some areas of the country), and
private label brands (products that carry the brand of the retailer rather than the producer.)