[custom_adv] The vast complex is packed with 18,000 workers and covers more space than London's Hyde Park. [custom_adv] The photos give Westerners a rare-glimpse into the sprawling factories that keeps British and American spies up at night. [custom_adv] One shot shows young employees hunched over as they graft on a production line. [custom_adv] Another shows them glued to their smartphones as they queue for European-style cuisine in a lavish canteen. [custom_adv] One base at Songshan Lake near Dongguan, China, is known as the Huawei Xiliu Beipo Village - but is nicknamed the Ox Horn Campus in English. [custom_adv] One sector is based on French capital Paris - with other areas taking inspiration from Friboug, Switzerland, Heidelberg, Germany, Bruges, Belgium, and Oxford, England. [custom_adv] Each zone is linked by red trams imported from Switzerland. [custom_adv] Huawei's President Ren Zhengfei said: "140 years ago, the world's centre was in Pittsburgh because of steel; 70 years ago, the world's centre was in Detroit because of cars; now where is the centre of the world? I don't know, but it will be decentralised. [custom_adv] "Companies will move to places where the cost is low. High cost will destroy your competitiveness." [custom_adv] It comes after Theresa May gave Huawei the green light to supply part of Britain’s 5G network. [custom_adv] The US has banned Huawei from government networks and urged the UK and other intelligence partners such as Australia to do the same. [custom_adv] Chinese firms are legally obliged to cooperate with Beijing’s state intelligence agencies. [custom_adv] Defence Secretary Gavin Williamson was later sacked for leaking top-secret documents about the move. [custom_adv] The Cabinet minister was confronted by Theresa May and accused of breaking his vow to keep Government secrets. [custom_adv] He allegedly told journalists that Theresa May was planning to allow Huawei to build Britain's mobile network despite spooks' fears the company is a massive security risk. [custom_adv] [custom_adv] [custom_adv]