| 摘要 |
FIELD: sealing engineering. ^ SUBSTANCE: sealing member comprises flexible body that can rotate symmetrically in the cross-section and protective film polymeric coating. The cross-section of the flexible body has rotating symmetry of the third order. The outer surface of the flexible body is provided with the longitudinal sealing edges with a protective coating made of adhesive belts. ^ EFFECT: reduced labor consumption for manufacturing and enhanced serviceability. ^ 2 cl, 5 dwg |
