Wednesday, March 28, 2018
Ground Gas Protection Verification Services GeoShield – Gas Membrane Testing BS 8485: 2015
This video, https://www.youtube.com/watch?v=ypqGTOVotFg, can also be seen at https://www.youtube.com/channel/UCWDLqrJIxD4KPkTPGkS7qxw.
See the rest of the story at http://vloglog.maryas.net/ground-gas-protection-verification-services-geoshield-gas-membrane-testing-bs-8485-2015/
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