Report - ! 25660-83, $ ; 0 = F K 8 7 > ; 8 @ C N I 8 5 4 ; O ? > 4 … › upl › gost › GOST-25660-83.pdfTitle GOST 25660-83 Underwater pipeline sealing flanges 10,0 MPa (100 kgf/sq sm).

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