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METHOD OF FIXING RIBS ON PIPES AND DEVICE FOR FIXISPOSOB MOCOWANIA ZEBER ZWLASZCZA NA RURACH I PRZYRZAD DO MOCOWANIA ZEBER ZWLASZCZA NA RURACH NG RIBS,ESPECIALLY ON PIPES
METHOD OF FIXING RIBS ON PIPES AND DEVICE FOR FIXISPOSOB MOCOWANIA ZEBER ZWLASZCZA NA RURACH I PRZYRZAD DO MOCOWANIA ZEBER ZWLASZCZA NA RURACH NG RIBS,ESPECIALLY ON PIPES