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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…
Ningbo JUTUO Seal CO., LTD is located in the beautiful port city of Ningbo. The city has the convenient traffic condition because of Beilun port and Lishe airport. Our company specialized in the production of mechanical sealing material and mechanical seals. The mechanical seal…
Our company professionally researches, develops, makes and sells the carbide in ceramic. The founder, Mr. Xu Zhengkai, produced the first batch of reaction bonded silicon carbide in the beginning of the 1980s and developed the material of silicon carbide added carbon in the middl…
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