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  • Quality standard of special steel balls

    Quality standard of special steel balls

    From the launch of raw materials to the completion of product processing, the steel ball requires multiple detection auxiliary production processes, which mainly include: cold pier → smooth ball → heat treatment → strengthening → hard grinding → preliminary research → sorting → refined research. 1. ... read more

    May 20,2020 Industry News
  • Toy plastic balls need environmental protection and safety

    Toy plastic balls need environmental protection and safety

    The material of toy plastic balls needs environmental protection and safety, and must meet the standards of toy product certification.At present, there are not many plastic raw materials that meet these standards, especially in the domestic toy industry. Unsafe plastic toys in toy products are PVC p... read more

    May 28,2020 Industry News