[hebei] Shahe Ji Jin Petroleum Coke Trade Co.,Limited
[liaoning] Panjin Ghigh Carbon Products Co., Ltd
[henan] Puyang Zhongshi Group Co;Ltd
[shaanxi] China Vigor Drilling Oil Tools and Equipment Co., Ltd
[hebei] Hebei Shengsa Carbon Manufacture Trading Co., Ltd.
Xinzheng Chengxin Carbon Co., Ltd.
Imen Kalayar Co.,Ltd.
[tianjin] Long Rich International Industrial Limited

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