O ring, Rubber o ring Material :Plastic Color :Red. Black Degree : -30~150 Without MOQ , sample is free O ring, Rubber o ring Material :Plastic Color :Red. BlackDegree : -30~150Without MOQ , sample ... 10 years , mainly professional manufacture the plastic mould components,die(casting mould components),hardware mould components,according to MISUMI,FUTABA,HASCO,DANNAY,D ...