• Office Address: Rm.15A01, Block1, Bldg.3, No.56 Jingsan Rd., Zhengzhou, China.
  • actory address: Bldg.4, Sigma Science & Technology Industrial Park, West Zhongyuan Rd., Zhengzhou, China.
  • Tel: +86-371-63389776     +86-371-63389786
  • Fax: +86-371-63389787
  • Skype:fengkun1968


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