Tianjin Gaanes metel technoleg Co., LTD. Cyfeiriad Ystafell 818, Adeilad 7, Canolfan Gyllid Ryngwladol Starlight Liaocheng, Dinas Liaocheng Nodedig Dongchang, Talaith Shandong, PRC E-bost sales@tjjnssteel.com Ffonio Gwerthiant: 13642131571 Cefnogaeth: 15510977839 WhatsApp +8615822136038 Wechat +8613642131571