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Steel Brothers & Co. Ltd.
Shuoying Biomedical Co., Ltd.
Yancheng Huakai Valve Manufacture Co. Ltd.
Beijing Xinzhiheng Technology Co., Ltd.
Zhengzhou Kaitong Si Chuang Technology Co., Ltd.Henan Sheng, China
Disruptive Technologies Research ASNorway
Yihe Co. Ltd.Jiangsu Sheng, China
Paul Murphy
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VAC STENT Medtec AG