rubber o rings(mechanical seal,seat ring ) 1.R,RX.BX 2.ISO9001 3.pressure:0~40Mpa ... 4.304.347,316,ocr13,CS,CI,347... rubber o rings ... ,, industrial parts, vehicle parts, motorcycle parts,electronics parts, gasket rubber, O-rings4) Processing methods: compression, injection, transfer, inserting molding, extrusion and ...