... . precise gas oil seal ring 2.Wire dia: 0.08-14mm 3.Material:as per demands 4.ISO9001 5.seal ring OEM ' ... s accept Manufactuer supplied precise gas oil seal ring1Place of Origin:Xiamen, P. ... ,spectrum analyzer device imported from Germany,vacuum melting furnace,CNC machine center17Production euipment:devise industrial,auto, motorcycle, electronics, machinery, ...