Guangzhou Tieying Spring Technology Co., Ltd. Telefoni:008613929542670 Whatsapp: 008613926165698 I-meli:tyi@tygasspring.com I-meli:tyg@tygasspring.com Tuatusi: Qiaoxing Guangzhu Road, Dongchong Town, Nansha District, Guangzhou, Guangdong, Saina