Shanghai Bluestone Plastic Technology Co., Ltd. Room1102, No.18, Shunyi Road Shanghai, China li_qing@bluestone.com.cn 0086-13817697799 ,0086-(0)21-62444079,0086-(0)21-62444608 Monday-Friday: 9am to 6pmSaturday, Sunday: Closed Write your message here and send it to us
