• TEL:+86 571 89300307 13858008194 （Justin Ying)
  • CHINESE
About Yaotong
About Yaotong
Certificates
Home > About Yaotong > Certificates
  • OHSAS 18001:2007 Certificate
  • ZG(S) Commercial Gas Meter Type Approval
  • LGS(WGS) Typed Approval
  • GS(ZGS) Type Approval
  • GA(ZGA) Type Approval
  • Xingtai Group Qualified Supplier Approval
  • Radio Transmission Device License
  • Patent Certificate For External Feature
  • Measurement Instrument License
  • ISO 14001:2015 Certificate
  • Direct-Reading Gas Meter Explosion-Proof
  • Wireless Gas Meter Explosion-proof
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  • RM 706 Binhai Building, No.480 Jiangnan Street, Hangzhou China
  • +86 571 89300307 13858008194 （Justin Ying)
  • zhengyu.ying@holley.cn
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