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Qingdao O.B.T Manufacture Co., Ltd.
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Chamotte Sand 200 mesh mullite sand powder for investment casting
  • Model:OBTA-200M
  • MOQ: 1ton

  • Mullite sand produced through high temperature calcined process.

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 O.B.T Manufacture
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OBT Mining as the China No.1 biggest manufacturer for mullite sand which has been supplying to Germany Thyssenkrupp,totally capacity 200000tons and OBT casting subsidiary factory specializing in R&D and manufacturing of precision casting equipment, precision metal products processing and precision casting process. Comprehensive company for technical research and supply for the invesment casting sand and machines. ...
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