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Guangzhou Rongfeng Plastic Technology Co., Ltd
Zibo Chemic New Material Co., Ltd
Guangzhou Laikebao New Material Technology Co., Ltd
Shijiazhuang Beihai Pipe Co., Ltd.
Jiaxing Jinhe Chemical Co., Ltd
Henan Senyo Industry Co., Ltd
SFR (Qingdao) Technology Co., Ltd.
Tongjou Chemical Industrial Co., Ltd.
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Shenzhen Contacare Technology Co., Ltd
Hubei Youshida Technology Co., Ltd.
Foshan Xinhang Bio-Tech Co.,Ltd
Chongqing Changyuan Group Limited
Toption Instrument Co.,Ltd