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Songshan boron industry is an industrial cluster integrating production, learning, research, finance and trade
Songshan industrial cluster is composed of Zhengzhou Songshan boron Technology Co., Ltd., Henan Rongsheng boron Technology Co., Ltd., Zhengzhou Songshan boron carbide s…
Dunhua Zhengxing abrasive Co., Ltd. was founded in 1987, Ningan City, Heilongjiang Province, Zhengxing Grinding Factory. For more than 30 years, we have been doing our utmost to study and manufacture boron carbide ceramic materials. We are determined to work hard for the original…
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