PRLB - Proto Labs inc (PRLB) Q2 2021 Earnings Call Transcript July, 29 2021 02:00 PM Proto Labs Inc. Image source: The Motley Fool. Proto Labs, inc (NYSE: PRLB) Q2 2021 Earnings Call Jul 29, 2021 , 8:30 a.m. ET Operator Continue reading For further details see: Proto Labs, inc (PRLB) Q2 2021 Earnings Call Transcript