Plastic Thorn Flower ring (Plum blossom ring), also known as Taylor ring, it’s improved according to application and mining industrial conditions based on Taylor ring, the diameter is twice than height, outsize are some "thorn" distributed, so it’s also known as thorn ring or sea urchin-type ring. It’s composed of 10 to 12 small rings arranged in a radial directions to be a large flat ring, very similar to a round sphere connected by the head and bottom part of a spiral coil spring; Usually the material could be PP / PVC / CPVC / PVDF / PTFE, etc.