about hongfeng

Honors
  • Safety Production License

    Safety Production License

  • New Business License

    New Business License

  • Standard conditions for refractory industry production line

    Standard conditions for refractory industry production line

  • Zhejiang Province

    Zhejiang Province "Contract abiding and Credit Valuing" Enterprise

  • Patent certificate

    Patent certificate

  • Patent certificate

    Patent certificate

  • Patent certificate

    Patent certificate

  • Patent certificate

    Patent certificate

  • Patent certificate

    Patent certificate