... 3.high precision 4.good strength 1.ningbo beiduo metallurgical equipment factory is a professional powder metallurgy manufacturer.2.process:mixing ... --packing3.material:steel,copper,steel copper,bronze,alloy.4.produce equipment:200T,100T,60T,25T,15T,10T,6T,3T.5.high ... used in automobile,motorcycle and many other field.like transmission gear