... ,HNBR 2) ISO9001:2000 Supply oil seal and valve stem seals:We offer oil seals,valve stem seals for different ... VITON1. Oil seals generally information:1) Applications : automobile , motorcycyles, agricultural machinery ,trucks ,buses ,trailers, heavy duty machine ,pump and other euquipment ... from:6mm to 500mm4) Specialized in design and manfactureing all the oil seal, water seals, gasket,washer ,PTFE ...