Bio
John has been with GMS for 22 years. He has worked on 40 field inventories for the company. He is a native of Flat Rock, Arizona. He holds a certification for URD inspections
John Tsinajinnie
John has been with GMS for 22 years. He has worked on 40 field inventories for the company. He is a native of Flat Rock, Arizona. He holds a certification for URD inspections