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Taiyuan Lanlang Technology Industry Corp.
Hainan Tangcai Technology Co., Ltd
Hunan Tengcan Lyrin Technology Co., Ltd
Zhengzhou Meiya Chemical Products Co.,Ltd
Protective Safety Products Co., Ltd
Shanxi Xinguan Environmental Co., Ltd.
Ruian Shengxiang Packaging Machine Co., Ltd
Xi'an Chen Lang Biological Technology Co., Ltd
Linhai Donghong Scientific Instrument Co., Ltd
MFCI CO.,LTD
TOHITA DEVELOPMENT CO. ,LTD
Shanghai Ambition Industrial Co., Ltd
Bourfu Industries Co. Ltd
KEITI (Korea Environmental Industry & Technology Institute)