Zhongtian PP, PE, PVC conjugate ring, having 12 years of pruducing experience, high quality ... .0>8.0>10.0 Physical & chemical properties of PP, PE, PVC conjugate ringSize(mm)Diameter*Height*Wall thickness(mm)Specific area ... .51420.9180163205050*40*1.51040.806695007676*76*2.6810.95843980 PP, PE, PVC Conjugate Ring