Guangzhou Tieying Spring Technology Co., Ltd. Telefon:008613929542670 https://www.youtube.com/@gasspringty8762 E-post:tyi@tygasspring.com www.facebook.com/gasspring.ty/ Adress: Qiaoxing Guangzhu Road, Dongchong Town, Nansha District, Guangzhou, Guangdong, Kina