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Hydraulic performance class
JG-50S Programmable Degassing ...
YT1209 hydrostatic pressure te...
YT1208 Bentonite Waterproof Bl...
YT030G-II Geotextile Effective...
YT070B-II type geotechnical dr...
YT090C drainage plate (horizon...
YT020M Type American standard ...
YT6107 Type-film water vapor t...