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API 2B
Issuing authority : American Petroleum Institute
Valid period : 2018/7/21 - 2021/7/21
API-5L Certificate
Issuing authority : American Petroleum Institute
Valid period : 2018/11/5 - 2021/7/24
FPC Certificate
Issuing authority : ECM
Valid period : 2016/4/27 - 2021/4/26
Material Manufacture Certificate
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Valid period : 2016/3/4 - 2021/3/3
Certificate
Issuing authority : C department
Valid period : 2016/3/6 - 2020/11/15
Certificate of ISO14001
Issuing authority : The international certification network
Valid period : 2018/3/28 - 2019/5/8
Certificate of ISO 9001
Issuing authority : The international certification network
Valid period : 2018/3/28 - 2019/5/8
Certificate of ISO18000
Issuing authority : The international certification network
Valid period : 2016/5/9 - 2019/5/8
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