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GOST 12821 Flange
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GOST 12821 Flange
GOST/ГОСТ 12821-80 FLANGE PN4.0MPa WN RF
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GOST/ГОСТ 12821-80 FLANGE PN2.5MPa WN RF
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GOST/ГОСТ 12821-80 FLANGE PN1.6MPa WN RF
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GOST/ГОСТ 12821-80 FLANGE PN1.0MPa WN RF
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GOST/ГОСТ 12821-80 FLANGE PN0.6MPa WN RF
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