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Daoyunai Energy Saving Technology Limited Quality Control

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Mr. Aaron Wang
aaron@cipptech.com
86-136-4196-7601
wechat +8613641967601
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  • China Daoyunai Energy Saving Technology Limited certifications
    Standard:Utility Model Invention Patent
    Number:7588156
    Issue Date:2017-10-26
    Expiry Date:2027-10-25
    China Daoyunai Energy Saving Technology Limited certifications
    Standard:Utility Model Invention Patent
    Number:6707592
    Issue Date:2016-12-05
    Expiry Date:2026-12-04
    China Daoyunai Energy Saving Technology Limited certifications
    Standard:INTELLECTUAL PROPERTY MANAGEMENT SYSTEM CERTIFICATION
    Number:41920IP00045-04R0S
    Issue Date:2020-04-29
    Expiry Date:2023-04-28
    China Daoyunai Energy Saving Technology Limited certifications
    Standard:Utility Model Invention Patent
    Number:4055846
    Issue Date:2014-09-15
    Expiry Date:2024-09-14

    DAO has strict requirements for DAO products.

     

    Daoyunai Energy Saving Technology Limited quality control 0

    Daoyunai Energy Saving Technology Limited
    Building 5, No. 1288, Kungang Highway, Songjiang district, Shanghai city 201616
    Tel: +8613641967601
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