... price: All our material are directly bought from SINOPEC, China Petro, SK group, Exxon Mobil, Sabic, Saudi Arabia. 3,Fast delivery. We ... located in Xiongxian, which is the packaging base in northern China, in the center of Beijing,Tianjin,Baoding,and close to ... Province. Because of the best quality in this field of China, our products are used by many famous company in home ...