J & K SCIENTIFIC LTD.
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Zhengzhou kangnuochenrui Chemical Technology Co.,Ltd
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Guangzhou Yuheng Pharmaceutical Technology Co., Ltd
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Zhuhai Aobokai Biomedical Technology Co., Ltd.
Telephone400-0628126 15697568805;
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Nanjing Shizhou Biology Technology Co.,Ltd
Telephone025-85563444 15850508050
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