IShanghai Bluestone Plastic Technology Co., Ltd. Igumbi1102, No.18, Shunyi Road Shanghai, China li_qing@bluestone.com.cn 0086-13817697799 ,0086-(0)21-62444079,0086-(0)21-62444608 NgoMvulo-ngoLwesihlanu: 9am ukuya 6pmNgoMgqibelo, ngeCawa: Kuvaliwe Bhala umyalezo wakho apha kwaye uwuthumele kuthi