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    <link:label id="lab_us-gaap_DebtInstrumentLineItems_CB0C3A79AA5402ACE08BC69C8CD6A5C4_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_CB0C3A79AA5402ACE08BC69C8CD6A5C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
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    <link:label id="lab_us-gaap_DebtInstrumentTerm_F4BC4E48DB1D8A397A08C69C8CD60E3C_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentTerm_F4BC4E48DB1D8A397A08C69C8CD60E3C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt term</link:label>
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    <link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_9705E6AE9E3DD7B88469C69C8CD6F660_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount_9705E6AE9E3DD7B88469C69C8CD6F660" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Debt, Gross</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_9705E6AE9E3DD7B88469C69C8CD6F660_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount_9705E6AE9E3DD7B88469C69C8CD6F660" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Gross</link:label>
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    <link:label id="lab_us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet_5D0E22B5E4BE0B7A1E71C69C8CD7854C_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet_5D0E22B5E4BE0B7A1E71C69C8CD7854C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Increase</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet_5D0E22B5E4BE0B7A1E71C69C8CD7854C_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet_5D0E22B5E4BE0B7A1E71C69C8CD7854C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Increase (Decrease), Net</link:label>
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    <link:label id="lab_pnr_LineofCreditFacilityAccordionFeatureIncreaseLimit_EFC97D6A236121FC94D8C69C8CD72326_terseLabel_en-US" xlink:label="lab_pnr_LineofCreditFacilityAccordionFeatureIncreaseLimit_EFC97D6A236121FC94D8C69C8CD72326" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Optional line of credit limit increase</link:label>
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    <link:loc xlink:href="pnr-20200331.xsd#pnr_LineofCreditFacilityAccordionFeatureIncreaseLimit" xlink:label="loc_pnr_LineofCreditFacilityAccordionFeatureIncreaseLimit_EFC97D6A236121FC94D8C69C8CD72326" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_812C7E88911FFA309266C69C8CD69B29" xlink:type="locator" />
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    <link:label id="lab_us-gaap_CommercialPaper_F02B5C5FE35BA65A3DBAC69C8CD73D34_terseLabel_en-US" xlink:label="lab_us-gaap_CommercialPaper_F02B5C5FE35BA65A3DBAC69C8CD73D34" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commercial paper</link:label>
    <link:label id="lab_us-gaap_CommercialPaper_F02B5C5FE35BA65A3DBAC69C8CD73D34_label_en-US" xlink:label="lab_us-gaap_CommercialPaper_F02B5C5FE35BA65A3DBAC69C8CD73D34" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commercial Paper</link:label>
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    <link:label id="lab_pnr_DebtInstrumentCovenantUnrestrictedCash_6AAF2B6132C44830F950C69C8CD7DD4E_terseLabel_en-US" xlink:label="lab_pnr_DebtInstrumentCovenantUnrestrictedCash_6AAF2B6132C44830F950C69C8CD7DD4E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt covenant, unrestricted cash</link:label>
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    <link:label id="lab_pnr_DebtInstrumentCovenantUnrestrictedCash_6AAF2B6132C44830F950C69C8CD7DD4E_documentation_en-US" xlink:label="lab_pnr_DebtInstrumentCovenantUnrestrictedCash_6AAF2B6132C44830F950C69C8CD7DD4E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instrument, Covenant, Unrestricted Cash</link:label>
    <link:loc xlink:href="pnr-20200331.xsd#pnr_DebtInstrumentCovenantUnrestrictedCash" xlink:label="loc_pnr_DebtInstrumentCovenantUnrestrictedCash_6AAF2B6132C44830F950C69C8CD7DD4E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnr_DebtInstrumentCovenantUnrestrictedCash_6AAF2B6132C44830F950C69C8CD7DD4E" xlink:to="lab_pnr_DebtInstrumentCovenantUnrestrictedCash_6AAF2B6132C44830F950C69C8CD7DD4E" xlink:type="arc" />
    <link:label id="lab_pnr_DebtInstrumentLeverageRatioCovenant_F3468E0A52E1AF03F92FC69C8CD7435B_terseLabel_en-US" xlink:label="lab_pnr_DebtInstrumentLeverageRatioCovenant_F3468E0A52E1AF03F92FC69C8CD7435B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt agreement financial covenant, leverage ratio</link:label>
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    <link:loc xlink:href="pnr-20200331.xsd#pnr_DebtInstrumentLeverageRatioCovenant" xlink:label="loc_pnr_DebtInstrumentLeverageRatioCovenant_F3468E0A52E1AF03F92FC69C8CD7435B" xlink:type="locator" />
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    <link:label id="lab_pnr_DebtInstrumentLeverageRatioCovenantPeriod_78407C608616CA5D2FCBC69C8CD73382_terseLabel_en-US" xlink:label="lab_pnr_DebtInstrumentLeverageRatioCovenantPeriod_78407C608616CA5D2FCBC69C8CD73382" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Leverage ratio covenant period</link:label>
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    <link:loc xlink:href="pnr-20200331.xsd#pnr_DebtInstrumentLeverageRatioCovenantPeriod" xlink:label="loc_pnr_DebtInstrumentLeverageRatioCovenantPeriod_78407C608616CA5D2FCBC69C8CD73382" xlink:type="locator" />
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    <link:label id="lab_pnr_DebtInstrumentEBITDARatioCovenant_22D0E3FF54A45FB855DFC69C8CD8110F_terseLabel_en-US" xlink:label="lab_pnr_DebtInstrumentEBITDARatioCovenant_22D0E3FF54A45FB855DFC69C8CD8110F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">EBITDA ratio for debt</link:label>
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    <link:label id="lab_us-gaap_ContractWithCustomerAssetNetCurrent_F69676FB33B74A188F13C1A3493BC044_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetNetCurrent_F69676FB33B74A188F13C1A3493BC044" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cost in excess of billings</link:label>
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    <link:label id="lab_us-gaap_PrepaidExpenseCurrent_904D29E0CAB6B307606BC1A3493B439A_label_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrent_904D29E0CAB6B307606BC1A3493B439A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prepaid Expense, Current</link:label>
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    <link:label id="lab_us-gaap_OtherAssetsNoncurrentAbstract_C67D2E44CAF7C2856199C1A3493ED426_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrentAbstract_C67D2E44CAF7C2856199C1A3493ED426" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other non-current assets</link:label>
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    <link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_99082F6BAAA2CB161339C1A3493E95D5_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset_99082F6BAAA2CB161339C1A3493E95D5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Right-of-use lease assets</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_99082F6BAAA2CB161339C1A3493E95D5_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset_99082F6BAAA2CB161339C1A3493E95D5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Lease, Right-of-Use Asset</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_99082F6BAAA2CB161339C1A3493E95D5" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DeferredIncomeTaxAssetsNet_C6149EAE093735B7EC9AC1BC2C80FCEA_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxAssetsNet_C6149EAE093735B7EC9AC1BC2C80FCEA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred income taxes</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxAssetsNet_C6149EAE093735B7EC9AC1BC2C80FCEA_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxAssetsNet_C6149EAE093735B7EC9AC1BC2C80FCEA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Income Tax Assets, Net</link:label>
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    <link:label id="lab_us-gaap_DeferredCompensationPlanAssets_526F4C359DE9DDC0E1D1C1A3493F7204_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredCompensationPlanAssets_526F4C359DE9DDC0E1D1C1A3493F7204" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred compensation plan assets</link:label>
    <link:label id="lab_us-gaap_DeferredCompensationPlanAssets_526F4C359DE9DDC0E1D1C1A3493F7204_label_en-US" xlink:label="lab_us-gaap_DeferredCompensationPlanAssets_526F4C359DE9DDC0E1D1C1A3493F7204" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Compensation Plan Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredCompensationPlanAssets" xlink:label="loc_us-gaap_DeferredCompensationPlanAssets_526F4C359DE9DDC0E1D1C1A3493F7204" xlink:type="locator" />
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    <link:label id="lab_pnr_OtherLongTermAssets_D5DF24C48F9CCDA13D34C1A3493F027B_terseLabel_en-US" xlink:label="lab_pnr_OtherLongTermAssets_D5DF24C48F9CCDA13D34C1A3493F027B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other non-current assets</link:label>
    <link:label id="lab_pnr_OtherLongTermAssets_D5DF24C48F9CCDA13D34C1A3493F027B_label_en-US" xlink:label="lab_pnr_OtherLongTermAssets_D5DF24C48F9CCDA13D34C1A3493F027B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Long Term Assets</link:label>
    <link:label id="lab_pnr_OtherLongTermAssets_D5DF24C48F9CCDA13D34C1A3493F027B_documentation_en-US" xlink:label="lab_pnr_OtherLongTermAssets_D5DF24C48F9CCDA13D34C1A3493F027B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other long term assets, excluding asbestos-related insurance receivables and deferred income taxes.</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnr_OtherLongTermAssets_D5DF24C48F9CCDA13D34C1A3493F027B" xlink:to="lab_pnr_OtherLongTermAssets_D5DF24C48F9CCDA13D34C1A3493F027B" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherAssetsMiscellaneousNoncurrent_16F55522D4D4300435F8C1D0728E8BF8_totalLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsMiscellaneousNoncurrent_16F55522D4D4300435F8C1D0728E8BF8" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total other non-current assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsMiscellaneousNoncurrent" xlink:label="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_16F55522D4D4300435F8C1D0728E8BF8" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_B06EF23ED88FC575DE8BC1A3493F7322_verboseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract_B06EF23ED88FC575DE8BC1A3493F7322" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other current liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_B06EF23ED88FC575DE8BC1A3493F7322" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_B06EF23ED88FC575DE8BC1A3493F7322" xlink:to="lab_us-gaap_LiabilitiesCurrentAbstract_B06EF23ED88FC575DE8BC1A3493F7322" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProductWarrantyAccrualClassifiedCurrent_8C32A5CD921F90BA25CEC1A34940DDE1_terseLabel_en-US" xlink:label="lab_us-gaap_ProductWarrantyAccrualClassifiedCurrent_8C32A5CD921F90BA25CEC1A34940DDE1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued warranty</link:label>
    <link:label id="lab_us-gaap_ProductWarrantyAccrualClassifiedCurrent_8C32A5CD921F90BA25CEC1A34940DDE1_label_en-US" xlink:label="lab_us-gaap_ProductWarrantyAccrualClassifiedCurrent_8C32A5CD921F90BA25CEC1A34940DDE1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Product Warranty Accrual, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent" xlink:label="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_8C32A5CD921F90BA25CEC1A34940DDE1" xlink:type="locator" />
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    <link:label id="lab_us-gaap_AccruedExchangeFeeRebateCurrentAndNoncurrent_C05BE4FFCC0C7F44B1F1C1A34940C019_label_en-US" xlink:label="lab_us-gaap_AccruedExchangeFeeRebateCurrentAndNoncurrent_C05BE4FFCC0C7F44B1F1C1A34940C019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Exchange Fee Rebate</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedExchangeFeeRebateCurrentAndNoncurrent" xlink:label="loc_us-gaap_AccruedExchangeFeeRebateCurrentAndNoncurrent_C05BE4FFCC0C7F44B1F1C1A34940C019" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityCurrent_502C6F341D3654139287C1C47363CD50_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityCurrent_502C6F341D3654139287C1C47363CD50" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Billings in excess of cost</link:label>
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityCurrent_502C6F341D3654139287C1C47363CD50_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityCurrent_502C6F341D3654139287C1C47363CD50" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract with Customer, Liability, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_502C6F341D3654139287C1C47363CD50" xlink:type="locator" />
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    <link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_2BB26199F8BDBA0E72CBC1A34940975E_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent_2BB26199F8BDBA0E72CBC1A34940975E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current lease liability</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_2BB26199F8BDBA0E72CBC1A34940975E_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent_2BB26199F8BDBA0E72CBC1A34940975E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Lease, Liability, Current</link:label>
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    <link:label id="lab_us-gaap_TaxesPayableCurrentAndNoncurrent_07DDC3154E0589E88C0CC1A3494060F5_label_en-US" xlink:label="lab_us-gaap_TaxesPayableCurrentAndNoncurrent_07DDC3154E0589E88C0CC1A3494060F5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Taxes Payable</link:label>
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    <link:label id="lab_us-gaap_OtherLiabilitiesCurrent_D1D2E0EDA8EDFC6CDFC3C1A3494150BA_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrent_D1D2E0EDA8EDFC6CDFC3C1A3494150BA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Liabilities, Current</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_9075ED11C1A4DBB58C9AC1A34A026104_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_9075ED11C1A4DBB58C9AC1A34A026104" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</link:label>
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    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_E6EFBCBBC538A68BE4F1C1A34A020116_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_E6EFBCBBC538A68BE4F1C1A34A020116" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Capital expenditures</link:label>
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