No.8 Beiqi Industry District XinShiQu Baoding, Hebei
16 Donghu Street, Harbin Yingbin Road Hi-Tech. Development District, Harbin City, Heilongjiang Provi Haerbin, Heilongjiang
No.10, fengning road, shuangyuan science and technology area, beichen district Tianjin, Tianjin