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Tractus Company Limited
852 8198 2399
http://www.tractuschem.com
Anward
852 8191 6999
http://www.anward.com
Debye Scientific Co., Ltd.
852 21376140
http://www.debyesci.com
贝达医药开发(上海)有限公司
+86 21 3353 8380
http://www.betapharma.cn
上海杨化工有限公司
[86] 2154173791
http://www.youchemicals.com
苏州诺行贸易有限公司
+86 512 65816829, 61978430, 60635156
http://www.rovathin.com.cn
MRV:哒嗪-4-羧酸甲酯.cml