Detailed Product Description Air freight from shenzhen to Sofia Bulgaria BEST SERVICES INTERNATIONAL FREIGHT LTD. (hereinafter ... , BSI Group registered and 'BSI' in State administration for industry & commerce.BSI Group is an integrated international logistic enterprise with ... and etc. BSI Group domestic own set-up are in Shenzhen head office, Guangzhou, Hong Kong, Dongguan, Zhongshan, Jiangmen, ...