About US – Crownkyn Superhard Materials Co.,Ltd.,
Henan Crownkyn Superhard Materials Co., Ltd. was founded in 1999, which is a product development and technological innovation company and masters the core technology of ultra-pure high-strength micron powder, mainly producing diamond micron powder and CBN micron powder. we did independently researched, developed and produced double-sided precision grinding equipment, diamond grinding wheels ...
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