When inserted into the socket connection between the socket flexible rubber ring, use a good elastic rubber ring, with a special seal groove socket fit, the gap between the fixed socket, so that the gap between the socket ring evenly to prevent debris entering pipes, to prevent media leaks. Features: Simple, easy construction, fast, small labor intensity, is elastic interface, can withstand a certain displacement and vibration generated by an external force, with seismic performance, but the interface material demanding for poor foundation, easy vibrations region. ● Simple, easy construction, fast, small labor intensity ● genus elastic interface, able to withstand the forces generated by displacement and vibration ● with seismic performance, but the interface material demanding for poor foundation, vibration-prone areas Dual flat wall plastic composite wound drainage (socket type) Product parameters No. projects require a ring stiffness (KN / m) SN8 ≥8 SN10 ≥10 SN12.5 ≥12.5 SN16 ≥8 2 Impact performance (TIR) ??≤10% 3 ring flexible sample smooth, no reverse bending, no rupture 4 oven test joints melt drains should be no delamination, no cracking creep rate ≤2% 6 5 weld tensile strength Nominal Size / mm nominal diameter pipe can withstand the minimum tensile strength (N) 300≤DN / ID≤500 600 600≤DN / ID≤800 840 900≤DN / ID≤1200 1020 1300≤DN / ID2000 1460 DN / ID≤2000 1600 7 ring flexible sample smooth, no reverse bending, no rupture 8 oven test joints melt drains should be no delamination, no cracking nine creep rate ≤2%