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Standard:Design License of Special Equipment Number:TS1810815-2020 Issue Date:2017-01-06 Expiry Date:2020-05-22 |
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Standard:PATENT-Biogas desulfurization device Number:4434766 Issue Date:2015-03-06 Expiry Date:2025-03-05 Issued By:State Intellectual Property Office of the P.R.C |
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Standard:PATENT-Natural gas liquefaction plant Number:4436628 Issue Date:2015-03-06 Expiry Date:2025-03-05 Issued By:State Intellectual Property Office of the P.R.C |
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Standard:PATENT-Gas decarburization and deacidification purification device Number:4432391 Issue Date:2015-03-06 Expiry Date:2025-03-05 Issued By:State Intellectual Property Office of the P.R.C |