Occupational health certification De…
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Iso45001 English (2022)
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Iso24001 English (2022)
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ISO9001 English (2022)
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Environmental certification 2020-12-…
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Customs registration certificate
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Boiler license 2023
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Record registration form of foreign …
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Record of foreign trade operators
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Safety production standardization Ce…
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ISO9001(2019)
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ASME U证(2021)
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ASME S证(2021)
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2022 penstock elements
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2021 safety valve
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2020 pressure vessel
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High certificate
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Business license
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