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Shandong Crown Industry Co., Ltd.
Hunan Bio-essential tech Co., Ltd.
Henan Lite Refractory Material Co., Ltd
Shandong HMK Petroleum Technology Co., Ltd
Kima Chemical Co., Ltd
XI’AN Mellon Chemical Technology Co., Ltd.
Wuhan Chuangdaxin Biotechnology Co., Ltd
Shandong Binzhou Zhiyuan Biotechnology Co.,Ltd
Shandong RuiXing Flame Retardant Technology Co.,Ltd
Jingzhou Xinxiangrui Chemical Co., Ltd.
Junwee Chemical Co.,Ltd
Shandong Aonuo New Material Co,.Ltd