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| Let me introduce ourself ourselves Shandong Aona Chemical Co.,Ltd , a leading manufacturer of carbon black N220/N330/N550/N660,Please contact me: ★ crystal.cc@hotmail.com ★.we are in carbon exporting for 6 years, and received great repution for our high quality and competitive price passing ISO9001:2000,ISO14001:2004 certificate. |
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